- Buyers Guide
Military Microwaves Supplement
100 W SPDT Switch
The model SWN-218-2DR-45068-MULTISPECTRAL is a SPDT reflective, solid-state switch. It is designed to handle 100 W CW with low insertion loss over narrow bandwidths. Operating from 100 MHz to 2 GHz with an isolation of 40 dB and an insertion loss of only 1.5 dB the switch exhibits a VSWR of 2.0. The power supply provides +5 VDC at 100 mA maximum and –15 VDC at 80 mA maximum. The control is through a TTL toggle on the control pin where “0” = J1 to J2 and “1” = J1 to J3.
American Microwave Corp. Inc.,
Frederick, MD (301) 662-4700,
Impedance Matching Pads
The model 851-879-FM2 is a 50 to 75 Ω impedance matching pad that eliminates impedance discontinuity (mismatches) without introducing reflection to the circuit. This 1 W unit offers nominal insertion loss of 5.7 dB and VSWR of 1.40 with SMA female/F male connectors. Custom units are available in a variety of impedance and connector types from DC to 3 GHz. The company’s impedance matching pads preserve signal integrity by matching virtually any transmission line.
BroadWave Technologies Inc.,
Franklin, IN (317) 346-6101,
SFP Transceiver Extraction Tool
This extraction tool facilitates the removal of SFP transceivers LC transceivers from their metal cages. These optical transceiver modules are typically equipped with an LC receptacle fully compatible with the industry standard LC connector. Thanks to its unhooking slide, the new tool enables smooth and safe removal. Customized versions provided with a label holder for easy identification are also available.
Compel Electronics SpA,
Low Pass Filter
The model 618.0004 is a low pass filter that operates in a frequency range from 1000 to 2500 MHz. The passband is 1 to 2.5 GHz, with passband power to 1500 W, impedance of 50 ohms, insertion loss of 0.2 dB and VSWR of 1.25. Connectors are 7/8" EIA. Delivery: four weeks ARO or less if required.
Connecticut Microwave Corp.,
Cheshire, CT (203) 250-9678,
SP8T Terminated RF Switch
The model M8N-542109 is a SP8T internally terminated latching switch with indicator cir-cuitry operating from DC to 18 GHz. The low IM switch features a –130 dBc minimum third-order IM and –160 dBc minimum fifth-order IM. The M8 series is also offered as a failsafe switch along with various actuator and mounting options. Special materials allow for superior RF performance and outstanding switching characteristics across the band. The low IM specifications are available with all CEI switches. Delivery: stock to two weeks.
Charter Engineering Inc.,
Pinellas Park, FL (727) 525-1025,
Triple Output DC/DC Converter
The MWR Series™ of triple output DC/DC converters is a high density, high efficiency product that operates over a wide input range of 14 to 50 VDC. This product can power both digital and analog systems with one converter. The 3.3 V main output with ±12 or ±15 V auxiliary outputs allows the user to power both digital (3.3 V) and analog (±12 or ±15 V) from the same converter. The MWR is also available with a 5 V main and ±12 or ±15 V auxiliaries. The MWR converters also feature an inhibit function, soft start and soft recovery. MWR converters have low output noise; typically around 0.5 percent up to 20 MHz bandwidth and high audio rejection adding up to a quiet product. The full operating temperature range is –55° to +125°C, case. The hermetically sealed case measures 1.950" X 1.350" X 0.415".
Crane Aerospace and Electronics, Electronics Group,
Redmond, WA (425) 882-3100,
Wideband Temperature Variable Attenuator
This wideband temperature variable attenuator (WTVA) operates in a frequency range from DC to 20 GHz. The WTVA is the newest extension of the popular Thermopad product line. The WTVA is the best to date for temperature compensation for mimics, amplifiers systems and any other subsystem that requires compensating for changes over temperature. The WTVA offers optimal performance over the entire frequency band up to 20 GHz and maximizes the amount of change of attenuation over temperature in the X-, Ku- and Ka-bands. This product is released and available now.
EMC Technology Inc., a Smiths business,
Stuart, FL (772) 286-9300,
Hi-Q Non Magnetic Capacitors
This full line of non-magnetic, RoHS-compliant Hi-Q capacitors are available in four case sizes: A case: 0.055 X 0.055 operational up to 300 W VDC; B case: 0.110 X 0.110 operational up to 1000 W VDC; C case: 0.225 X 0.225 operational up to 5000 W VDC; and E case: 0.390 X 0.390 operational up to 7200 W VDC. This non-magnetic series is available in two dielectric styles: 10 series (P90) or the 70 series (NPO). Products exhibit excellent performance (Q > 10,000) for non-magnetic body and surface coil applications.
Dalicap Corp./Passive Plus,
Huntington Station, NY (631) 425-0938,
Broadband X-band Circulator
The model 4CMB 10-1 is designed for the front-end of active phased array antennas in X-band. This broadband microstrip circulator has a 40 percent bandwidth. The frequency range is 8 to 12 GHz. The insertion loss is 0.6 dB with isolation of 19 dB. The maximum VSWR is 1.30 at all ports. These units can handle 10 W of power and operate over the temperature range of –40° to +70°C. Circulators 4CMB10-1 feature compact dimensions (0.40" X 0.40" X 0.157").
Dorado International Corp.,
Seattle, WA (206) 574-0900,
500 W Flange Termination
This flange mount device dissipates 500 W while operating in a frequency range from DC to 2.5 GHz. The termination has been tuned to achieve a maximum VSWR of 1.30, DC to 2 GHz and 1.50, 2 to 2.5 GHz. Available in Tin/Lead and RoHS-compliant versions: 32-1209 and 32A1209F. This device represents a significant increase in frequency range for a high power termination.
Florida RF Labs Inc., a Smiths business,
Stuart, FL (800) 544-5594,
PIN Diode Attenuator
The model A0P-83N-0BX is a PIN diode attenuator that operates in a frequency range from 16 to 32 GHz. It is capable of a 32 dB dynamic range in monotonic 0.125 dB steps. The attenuation flatness is ±3.0 dB with a 2.0 VSWR and a 4 dB insertion loss. The attenuator is digitally-controlled via 8 bits of TTL compatible binary logic with switching speed less than 500 nsec. The attenuator handles +15 dBm CW or 1 W maximum. Size: 2" X 2.5" X 0.75".
G.T. Microwave Inc.,
Randolph, NJ (973) 361-5700,
Digital Phase Shifter
The model HMC543LC4B is a four-bit digital phase shifter that is rated for operation from 8 to 12 GHz, and provides 0 to 360 degrees of phase coverage with a LSB of 22.5 degrees. The HMC543LC4B provides a low RMS phase error of 5 degrees and extremely low insertion loss variation of ±0.8 dB across all phase states. This high accuracy phase shifter is controlled with complementary logic of 0/–3 V, and requires no fixed bias voltage. Simple external level shifting circuitry can be used to convert a positive CMOS control voltage into complementary negative control signals. This phase shifter is ideal for EW receivers, radar, satellite communications and beamforming subassemblies.
Hittite Microwave Corp.,
Chelmsford, MA (978) 250-3343,
Waveguide Low Pass Filters
The new AMQ-LP1 series of waveguide low pass filters has been designed to provide a rejection of better than 100 dB, falling to only 70 dB at band edges. The series comprises five standard parts using waveguide sizes WR340, WR137, WR112, WR90 and WR75 to deliver cut-off frequencies of 2.75, 8.15, 9.00, 10.40 and 13.50 GHz, respectively. They are particularly suited for use as transmit reject filters and are precision engineered to achieve a Chebyshev ripple response with sharp cut off, a maximum insertion loss of 0.6 dB and a minimum return loss of typically 20 dB.
Link Microtek Ltd. UK,
Basingstoke, UK +44 (0) 1256 355771,
2 to 18 GHz Power Dividers/Combiners
These compact, high performance Wilkinson power dividers/combiners are ideally suited for C-, X- and Ku-band systems applications. Two- and four-way SMA Female models feature high isolation, low insertion loss, exceptional VSWR and excellent phase/amplitude balance. These power dividers/combiners are available in octave bands and also broadband designs including 2 to 18 GHz. Delivery: from stock to four weeks ARO. Made in the USA.
Denville, NJ (973) 625-0661,
50 and 100 W Load Terminations
These high power terminations meet the low cost needs of the wireless market across the whole DC to 3 GHz band. The TB-70 (50 W) and the TB-75 (100 W) are both available with either N or 7-16 mm DIN, male or female connectors. Units have been designed using solder free mechanically stable connections and achieve a typical VSWR better than 1.10 across the whole frequency band.
Parsippany, NJ (973) 386-9696,
The model TSM-2 is an SMA male termination that operates in a frequency range from DC to 18 GHz at 2 W and is currently overstocked. Higher power and Type N terminations are also available for immediate delivery.
Microwave Communications Laboratories Inc.,
St. Petersburg, FL (727) 344-6254,
40 GHz Terminators
The WAMT and MSMW line of 40 GHz RF/microwave chip resistor terminators are manufactured using MSI’s processes and materials to produce resistors with ultra-low parasitic capacitance and inductance. These designs were developed primarily for use in applications where the resistor terminator is placed in the same plane as the associated circuitry, thus reducing parasitic inductance and capacitance. Precision high frequency LASER trimming techniques produce superior high frequency resistors. The WAMT and MSMW line of chip resistors are offered in a 0.020" X 0.010" with resistor values from 3 to 400 Ω.
Mini-Systems Inc. (MSI), Thin Film Division,
North Attleboro, MA (508) 695-0203,
360° Digitally-controlled Phase Shifter
The PMI model PS-360-DC-1R Option 810 is a digitally-controlled phase shifter that operates from 8 to 10 GHz (other frequencies are available), the VSWR is 1.75 maximum and the phase accuracy is ±10°. Power handling is +20 dBm (+30 dBm survival) and this model offers a switching speed of 500 nsec and 10 bit TTL control. The size is 4.95" X 3.38" X 1.02" and power supply of ±12 or 15 V at ±100 mA.
Planar Monolithics Industries,
Frederick, MD (301) 631-1579,
Linearized Analog X-band Attenuator
The model AAT-30-479/5S is a 0 to 60 dB analog attenuator that covers a frequency range from 8 to 12.4 GHz with a maximum insertion loss of 3 dB and a maximum VSWR of 2:1. Attenuation is accomplished with a transfer function of 10 dB/V, typical. DC power required is +15 V at 100 mA. Size: 2.00 X 2.00 X 0.08.
Pulsar Microwave Corp.,
Clifton, NJ (973) 779-6262,
PCS Band Diplexer
The part number 2DP-PCS-75 is a diplexer with passbands of 1850 to 1910 and 1930 to 1990 MHz. Passband insertion loss comes in at less than 1 dB, with a passband return loss of less than 16 dB, minimum channel to channel isolation of 75 dB, and is rated for input power of up to 250 W. It has a stellar IMD performance of less than –120 dBc. This unit can come with most any RF connector and is sized at only 1.35" high X 6.5" wide X 8.7" long.
Gaithersburg, MD (301) 519-3660,
The RSMH (H for hermetic) series of switches offer the same dependability of the company’s standard design in a truly hermetic laser welded package. All connectors and lugs are either glass-to-metal or metal-to-metal with no epoxy being used. The RSMH series switches are sealed in a dry environment and will operate at –55° to +85°C in the most severe conditions. Options include break before make, latching, pulsed latching and failsafe configurations.
Renaissance Electronics Corp.,
Harvard, MA (978) 772-7774,
X-band Dual Conversion Receiver
This custom X-band dual conversion receiver is designed for military airborne requirements. This receiver includes an STC attenuator, low noise amplifier, RF bandpass filter, LO filters, ceramic bandpass filters in the first IF and lumped element filters in the second IF. Conversion gain is greater than 70 dB and all spurious signals are suppressed by 90 dB typical.
Rodelco Electronics Corp.,
Ronkonkoma, NY (631) 981-0900,
55 GHz Bandpass Filter
The model F55-4V is a bandpass filter with a 2 percent passband at 55 GHz. The filter assembly consists of four high-Q iris-coupled waveguide cavities with optional waveguide to coax adaptors at each end. The passband insertion loss is 2 dB. The rejection at 52.5 and 58 GHz is 30 dB minimum. The input/output connectors are 1.85 mm “V” type and are available in male or female. The orientation of the connectors can be in a “U” or “S” shape. This family of filters is available from 18 to 65 GHz.
Spacek Labs Inc.,
Santa Barbara, CA (805) 564-4404,
Stainless Steel Adaptors
These TuffGrip adaptors are precision, high quality stainless steel adaptors that are more durable than typical nickel-plated brass adaptors. TuffGrip adaptors are competitively priced but made in the USA from high quality stainless steel. The Type N male and female bullet adaptors provide excellent performance to 18 GHz with exceptionally low VSWR. The 7-16 DIN adaptors are laboratory grade but designed to be rugged enough to provide long life in field applications. The coupling action on these large connectors is smooth and easy.
Times Microwave Systems,
Wallingford, CT (203) 949-8400,
High Flex Cable Assemblies
GORE™ FireWire® high flex round and flat cable assemblies provide motion control and vision systems with reliable flex life performance. These assemblies should be used to prevent lost data or data integrity issues. When reliable system performance and equipment uptime are critical, GORE FireWire high flex cable assemblies provide peace of mind. The attenuation increases significantly when these cables are flexed. GORE FireWire high flex cable assemblies maintain stable attenuation over the flex life. They are designed to meet the demands associated with motion control and vision systems. GORE FireWire high flex cable assemblies will flex with no bit errors or loss of data.
W.L. Gore & Associates Inc.,
Elkton, MD (800) 445-4673,
5 W Directional Coupler
The commercial grade, model XMADC5-8-2-ZS is a cost-effective directional coupler that features low insertion loss and 5 W of average power handling capability. The high directivity, directional coupler uses standard SMA connections and has a black finish. The 5 W coupler, XMADC5-8-2-ZS operates in a frequency range from 800 to 2000 MHz and offers an insertion loss of £ 1.8 dB based on a 6 dB unit. It has a maximum VSWR of ≤ 1.30 and an impedance of 50 Ω. Custom units are available upon request.
Manchester, NH (603) 222-2256,
High Power Amplifiers
These broadband maximally flat high power amplifiers are designed with MMIC technolo-gy, resulting in an economical and reliable solution. The model AMP800G2.5-23-35 is an 800 MHz to 2.5 GHz amplifier that features 23 dB gain with gain flatness better than ±1.25 dB. The amplifier outputs at least 2 W of power. Current draw is 650 mA from +24 V. Connectors are sma (f) and delivery is typically from stock. Other models are available that feature additional gain, different input voltages and frequency ranges.
Verona, NJ (201) 919-2088,
Solid-state Power Amplifier
The model BM1829-10 is a Class AB linear amplifier that operates over the full 100 to 2000 MHz frequency range; proving a minimum of 10 W over temperature and load VSWR variations. The amplifier is compact (4.0" X 2.5" X 1.35") and weighs less than 1 pound. This amplifier operates between 20 to 36 VDC for applications in mounted, dismounted and airborne systems.
Comtech PST Corp.,
Melville, NY (631) 777-8900,
GaInP HBT Amplifier
Aimed at WiMAX applications, the MGFS36E2527 GaInP HBT amplifier module operates in the 2.5 to 2.7 GHz frequency range from a single 6 V power supply. With a footprint of just 4.5 mm by 4.5 mm and an overall height of 1 mm it is said to be the world’s smallest amplifier in its class. The module provides gain of 32 dB and when used with 64 QAM it achieves good linearity up to an output power of more than 27 dBm (referring to 500 mW), while the error vector magnitude remains less than 2.5 percent.
Mitsubishi Electric Europe,
Ratingen, Germany +49 2102 4860,
4.4 to 5 GHz Antennas
Increased interest in communication systems in the US defense frequency band 4.4 to 5 GHz (C-band) has resulted in the development of two high gain flat panel COTS antennas. The ‘one-foot’ FPA20-47V/1323 antenna has 20 dBi gain, 14° azimuth by 14° elevation beam pattern, and measures 225 mm square by 22 mm. The ‘two-foot’ FPA26-47V/1322 antenna has 26 dBi gain with 6° azimuth by 6° elevation beam pattern, and measures 600 mm square by 24 mm. These directional antennas have well defined, low sidelobe patterns for use within defense, military and homeland security applications for point-to-point single-hop data links and as the ‘subscriber’ in point-to-multipoint systems.
European Antennas Ltd.,
Cheveley, Newmarket, UK +44 1638 731888,
Filter Synthesis Software
ACS has recently released a new version of its LINC2 filter synthesis software. LINC2 Filter Pro designs lumped and distributed filters in both single-ended and differential configurations. Version 1.13 adds DXF export capability to its layout viewer for transferring layout files to other programs. LINC2 DXF layout files can be translated to Gerber format for PCB fabrication. Microstrip and stripline filters can be analyzed with the built-in circuit simulator or exported to Sonnet®’s EM simulation program for electromagnetic simulation. The wizard-like GUI quickly and effortlessly guides the user through the process of entering the specifications for the automatic synthesis of a wide variety of filters. Schematic capture and a high performance circuit simulator form the foundation on which LINC2 seamlessly integrates a comprehensive suite of circuit synthesis modules, including filter design, synthesis and layout.
Applied Computational Sciences (ACS),
Escondido, CA (760) 612-6988,
High Frequency EM Simulation Software
The newly released Sonnet® Suites Release 11 offers perfectly calibrated internal ports that can be used for highly accurate attachment points for active or passive components. These Co-calibrated™ Ports enable full co-simulation within the EM analysis environment. Release 11 also includes a totally redesigned Agilent ADS Interface with a new GUI interface and a new 64-bit EM analysis engine.
North Syracuse, NY (315) 453-3096,
Electroless Plating Technology
The electroless nickel/gold plating technology is designed for low temperature co-fired ceramic (LTCC). This new process offers an alternative path to manufacture lower cost and high reliability components. The process offers the following features: wire bondable; solderable; 1,000 hour HTSL at 150°C on assembled product; HTSL = high temperature storage life; electroless nickel per MILC26074E; and electroless gold per MILG45204C.
Attleboro, MA (508) 226-3350,
Hybrid Space Crystal Oscillators
The 9900 series of hybrid space crystal oscillators is comprised of simple clock oscillators (XO), voltage-controlled crystal oscillators (VXCO) and higher performance temperature compensated crystal oscillators (TCXO). Based on proven designs and manufacturing techniques for high reliability in numerous space applications, the hybrid oscillators provide high performance and a wide range of output frequency with exceptional stability in a ruggedized, low power, lightweight package. The 9900 series comprises the models 9920, 9940 and 9960, providing the following features: 10 MHz to 1.2 GHz output frequency, MIL-PRF-38534 Class H or K Certified, fixed frequency and voltage-controlled, sine wave, PECL outputs and low aging and phase noise.
San Jose, CA (978) 232-1422,
Low Phase Noise Synthesizers
The MTS3000DS series of high performance, low phase noise synthesizers with 1 Hz resolution are designed for use as signal sources and generators in high end receive and transmit systems, TV and radio transmitters as well as test equipment. Programming the synthesizer is made easy by a standardized interface via I2C, SPI, RS232 and optionally Ethernet. Only a single 12 V supply is required and different Reference options like TCXO or OCXO are available. System integration is as easy as plug-in as it comes standard in cassette that fits into 19” housings. The first product released to production covers the frequency range from 350 to 1050 MHz. Other frequency ranges from 5 MHz to 6 GHz are available based on Synergy’s wideband VCO range.
Synergy Microwave Corp.,
Paterson, NJ (973) 881-8800,
Coaxial Voltage-controlled Oscillator
The model ZX95-3146+ is a coaxial SMA voltage-controlled oscillator (VCO) that features 5 V tuning for PLL integrated circuits (IC) and operates in a frequency range from 3000 to 3110 MHz. This VCO offers high power output, +9 dBm typical, low phase noise, –144 dBc/Hz at 1000 kHz and low pushing. Applications include: R&D, lab, instrumentation and wireless communications. This model is RoHS-compliant in accordance with EU Directive. Price: $44.95 each (1–9).
Brooklyn, NY (718) 934-4500,
The model CLV6115A-LF is a lead-free, RoHS-compliant oscillator in extended C-band (5940 to 6308 MHz) featuring low phase noise performance of –85 dBc/Hz at 10 kHz offset. The unique design offers superior harmonic suppression of –20 dBc with a typical tuning sensitivity of 105 MHz/V. It is designed to operate at 8 VDC supply while drawing 23 mA (typical) over the extended operating temperature range of –40° to 85°C. The model CLV6115A-LF is ideally suited for applications that require low phase noise performance at microwave frequencies. Size: 0.50" X 0.50" X 0.22". Price: $24.95/VCO (five pcs min). Delivery: stock to four weeks.
San Diego, CA (858) 621-2700,
E-band Tx/Rx Modules
This transmit-receive module pair operates over the E-band frequency spectrum from 71 to 86 GHz. These modules enable broadband point-to-point radios to carry voice and data traffic at multi-gigabit per second rates. The typical performance of Endwave’s transmit module includes a conversion gain of 15 dB and an output power of 16 dBm, with an integrated power detector on the Tx output. Higher-power transmitter options are also available upon request. Endwave’s E-band receiver provides a noise figure of 9 dB, better than 25 dB of RF-to-IF conversion gain, and an input one dB compression point (P1dB) of –25 dBm. Separate models cover the 71 to 76 GHz and 81 to 86 GHz operating bands. Both Tx and Rx use an MLMS™ sub-harmonic mixer topology that provides a single level of conversion direct from E-band to IF.
San Jose, CA (408) 522-3100,
Point-to-Point Data Link
The SENCITY® Link is an easy to install point-to-point data link for bridging distances of up to 800 m. Designed for wireless broadband mm-wave communication, the link operates at a frequency of 60 GHz with a net data rate of 100 Mbps full duplex over a distance of up to 800 m. Measuring 16 by 16 cm its compact size is due to deep integration of its active and passive components and its ease of installation is facilitated by the simplicity of an optical pointing and alignment bracket. Applications include enterprise and campus connectivity, disaster recovery, fiber backup, replacement or extension, and high capacity internet protocol backhaul for emerging IP cellular and WiFi/WiMAX deployments.
Huber + Suhner AG, RF Technology,
Herisau, Switzerland +41 (0) 71 353 4111,
Gigabit Ethernet Platform
The Horizon Compact integrates and enhances the functionality of traditional wireless indoor and outdoor units in a single, native Gigabit Ethernet microwave transmission system. The Horizon Compact enhances the value proposition with 800 Mbps full duplex capacity at lower capital and operational costs for enabling Carrier Ethernet services. Horizon Compact will operate in the 11 to 38 GHz licensed radio frequencies, ensuring interference-free performance for wireless Carrier Ethernet traffic. This solution provides scalable, low latency, wire-speed native Gigabit Ethernet connectivity up to 800 Mbps. The system is extremely easy to deploy and manage, with a full suite of network-management options. Horizon Compact supports 50-ms switching and 99.999-percent service availability over point-to-point, ring and mesh network topologies.
Ottawa, Canada (613) 599-9991,
Placement and Bonding System
The KADETT is a high accuracy placement and bonding system especially configured for R&D laboratories, universities and pre-production environments. This semi-automatic device bonder is a flexible and open platform for accurate assembly and bonding of devices on a large variety of substrates, performing pick and place functions. A wide range of bonding processes including In-Situ Reflow, Thermo-Compression, Thermo-Sonic and Adhesive Bonding are available for forces up to 75 N. Accurate alignment is automatically achieved by a vision system which uses two independent high resolution video microscopes (chip and substrate) with a high resolution (0.1 mm) XY alignment stage.
SUSS MicroTec Device Bonder Division,
Saint Jeoire, France +33 450 35 83 92,
AR RF/Microwave Instrumentation has several complete test systems available that perform entire tests with just the press of a few buttons. The AS40000 Radiated Immunity Test System (800 to 40 GHz), for example, allows users to coordinate five amplifiers, a field monitor, two power meters, two system controllers, a signal generator and a 20-foot antenna mast with five antennas. AR also challenges users to bring them their most difficult test problems. The company has a wide variety of modules that it is able to customize with the desired power and frequency (from 10 kHz to 45 GHz).
AR RF/Microwave Instrumentation,
Souderton, PA (215) 723-8181,
Baseband Generator and Fader
The R&S AMU200A provides both a baseband signal generator and a two-path real time fader in a single instrument. Due to its modular design, it can also be configured exclusively as a fading simulator or as a baseband signal generator. Equipped with up to two fading simulators, the instrument can be used for channel simulation in the baseband. Features include up to 20 fading paths per channel (40 in total), time resolution of 0.01 ns, and predefined static and dynamic fading profiles. It also functions as a flexible baseband source for tests on baseband components of broadband communications equipment and generates signals for all of the important digital standards such as WLAN, WiMAX, GSM/EDGE, 3GPP FDD, HSPA and LTE.
Rohde & Schwarz GmbH & Co. KG,
Munich, Germany +49 89 4129-13779,
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