Aeroflex / Weinschel celebrates 60 years of operation – A historical look at the company

Aeroflex Digital Radio Test Set Addresses LTE Test Challenges

The Aeroflex 7100 Digital Radio Test Set is a test solution that has been developed to enable R&D engineers working on LTE terminal design to meet the challenges of the evolving standards.

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Weinschel, an API Technologies company announces a series of programmable attenuator units that offer a streamlined approach in programmable attenuation for bench test and subsystem applications. Models 8320 and 8321 house and control various Weinschel programmable attenuator models (3200-XE, 3400, 150T, and 4200 Series) via front panel controls, Ethernet, USB 2.0 and Serial communications interfaces.

Weinschel's low PIM products offer a rugged construction low profile design free of solder joints that covers DC to 6.5 GHz, with power handling up to 175 W average and IM3 levels as low as -150 dBc output and -120 dBc reflected dependent on dB value. Model 254 is available in 10, 20, 30 and 40 dB. Other features include quality connectors with special high temperature support beads and choice of Type N or SMK (2.92 mm).

At the heart of the digital attenuation solution is a series of USB/TTL controlled MMIC digital attenuators and Ethernet controlled rack-mountable subsystems that are suitable for a multitude of RF and microwave applications up to 6 GHz. The USB/TTL controlled MMIC digital attenuators, Model 4205 Series, are available in three attenuation configurations.

Weinschel offers a comprehensive product line of power splitters and power dividers. Many of these standard products were designed for particularly demanding broadband requirements, SWR and high power system applications. They have a wide selection of connector types and offer frequency express shipment on select models.

This low cost design offers two new designs that operate from dc-26.5 GHz and dc-40 GHz. These designs are available in standard attenuation ranges of 0-9 dB in 1 dB steps (9012-9 & 9015-9) and 0-70 dB in 10 dB steps (9012-70).

The Weinschel PLANAR CROWN® universal connector system incorporates design and application features that eliminate the technical, electrical and economical drawbacks of standard bulkhead connectors, connector savers, cable connectors and adapters.

Weinschel’s 980 series of mechanical phase shifters allow for nominally linear phase adjustments over the dc to 12 GHz frequency range (depending on model). Each unit contains a internal self-locking mechanism that eliminates the need for a locking nut which is ideal for phase trimming in densely packaged systems with minimum accessibility.

These Coaxial Attenuators operate over the dc-40 GHz and are capable of handling up to 2 W for Model 54A and 20 W average for Model 89 and up to 200 W peak. Model 54A is available in 3, 6, 10, 20, 30 dB while Model 89 is available in 10, 20 and 30 dB.

Aeroflex / Weinschel offers a series of 6 GHz relay switched programmable attenuators that are specifically designed for wireless/cellular, RF simulation/emulation & communication test applications. Other features include choice of attenuation ranges and steps (0 to 55 / 1 dB, 0 to 103/1 dB and 0 to 55.75 / 0.25 dB).

This catalog outlines Weinschel's wide range of RF, wireless, & microwave components and subsystems that operate over the dc to 40 GHz frequency range. Product lines include programmable step attenuators including PIN, FET, relay and edge-line technologies, and more.

Weinschel”s series of phase compensated GaAs switched solid-state programmable attenuators (Model 4246 & 4248) are specifically designed for wireless/cellular, RF simulation/ emulation & communication test applications. The incremental relative phase for these unit is ±5° between 0 and.25, 1, 2, 4, 8, 16 dB and ±10° between 0 and 32, 48 dB.

Weinschel offers a series of 6 GHz relay switched programmable attenuators (Models 3406 & 3408) that are specifically designed for wireless/cellular, RF simulation/emulation & communication test applications. This series is available in many standard attenuation ranges and cell configurations (0 to 55 / 1 dB, 0 to 103/1 dB and 0 to 55.75 / 0.25 dB).

This line of intelligent programmable step attenuators with a built-in digital interface are designed to simplify the control and integration of these devices into subsystem and bench applications. This series of programmable step attenuators is designed for use in automatic test equipment and OEM systems operating in the dc to 6 GHz frequency range. These models are available in many standard attenuation ranges and cell configurations.

This specialized subsystem is used to simulate the connectivity between a mobile unit running along a line of 3 base stations spaced from 250 to 1000 meters apart. The test subsystem is able to simulate the variation of the RF signal from the base stations reaching the mobile when the mobile is moving at speeds of up to 250 km/h.

Weinschel’s Model 4201-63 MMIC digital attenuator operates over the 0.4 to 6 GHz frequency range and provides an attenuation range from 0 to 63 dB in 1 dB increments. This attenuator has excellent repeatability and performance with built-in TTL interface.