Four Channel Switch Filter Bank
The 4IFA-1600/22-300-MP is a four channel filter bank. It features 4 selectable channels with bandwidth ranging from 22 MHz to 300 MHz. The unit was designed as a “miniature low profile” device for military applications where space is a premium. (Package size is 1.6” L x 1.6” W x .3” H.) Insertion loss is 7.5 dB max per channel; switching speed is 200 NS max, driven by the delay in the narrowband channel. VSWR is 1.5:1 max. Switches operate on a +5 V supply, control logic is TTL. Typical IP3 numbers are 40 dBm with +20 dBm as the maximum input power. The unit was designed to meet MIL-STD 202 environmental requirements. This unit utilized a low ripple Chebyshev design, however Gaussian, Bessel, Butterworth, linear phase and elliptical are available.

Six Channel Switch Filter Bank
6IFA-100/9500-SR is a six channel switch filter bank covering the frequency range of 100 to 9500 MHz. This unit features chip and wire filter technology up to 9500 MHz. The bank maintains 5 dB maximum insertion loss and 60 dB ultimate rejections. The typical switching speed is <400 ns with 3 bit TTL control. The bank maintains a low profile package height of .490 maximum with sma-female field removable connectors suitable for ground or airborne applications.

S-Band Switch Filter Bank
The 2IFA-2016/2436-MP is a two channel high isolation switch filter bank. This unit features 80 dB stop bands, 6.5 dB maximum insertion loss and 2.0:1 standard VSWR. This switch bank utilizes a +5V power supply with <50mA current draw. The control and voltage lines feature control line decoupling to reduce RF pick-up. The switching speed is specified as 100 ns maximum. The mechanical housing includes RF pins for surface mounting and .300 tall maximum height to fit low profile cards. This assembly has been designed to meet stringent environmental conditions.

GPS-Preamplifiers
The Lorch GPS preamplifier is a modern high performance preamplifier. It incorporates a pair of three pole dielectric filters to select only the desired GPS signals, while rejecting unwanted out-of-band signals. The low-noise gain stage maintains the receiver sensitivity to guard against loss of GPS signal. Typical specifications are 26 dB gain and 2.0 dB max. noise figure. The unit is powered by DC applied to the center conductor of the output connector. The pre-amp may also be powered by an external DC bias connection.

Receiver
BAI-RX390-OPT2 is an eight channel RF receiver covering the frequency range of 380 to 400 MHz. This unit features a lightweight low profile package for use on unmanned aerial vehicles. The receiver is operated from a +12V power supply with <140 mA of current. Channel selection is achieved via standard TTL inputs.

C-Band Diplexer/LNA
The Lorch Microwave D10EZX-5362.5/5737.5-S is a C-Band diplexer with a low noise amplifier in the RX band. This assembly features high performance electrical specifications in a small rugged configuration for airborne environments. The diplexer features 85dB TX to RX isolation while maintaining a 1.0 dB maximum pass band insertion loss. This assembly also provides the option for additional filtering with an external filter option.

RF Signal Processing Components
Lorch Microwave offers a complete line of custom engineered specialty components. These components include phase shifters (manual, voltage controlled or digital), phase comparators and attenuators (manual or voltage controlled). We also manufacture a complete line of standard mixers and power splitters.

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