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.
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.
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 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.