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Document overview
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Technical content
- Minimum 100W Output Power per channel using high efficiency LDMOS transistors
- Low receiver noise figure <3.3dB @ +55°C
- Up to 100μs Pulse Width, 20% Duty Cycle
- 6 BIT phase and attenuation control
- Independent control of each channel
- Large Internal Storage Capacitance for Optimum Pulse Shape
- Integral power supply sequencing and conditioning
- Integral digital control and messaging logic
- European Manufacture Dual S-Band 100W Transmit / Receive Module (TRM) 3.1 - 3.5 GHz The API Technologies Dual S-Band 100W Tx/Rx Module is designed to operate in active Phased Array Radar systems. It utilises a 40V supply to drive the 100W LDMOS amplifier, which operates in class AB, with local storage capacitance to supply the peak currents for 100us pulse lengths at duty cycles up to 20%. A circulator provides the duplexer function with a T/R switch to protect the receiver from reflected power. The 6 BIT phase shifter and attenuator are positioned in the common arm so are available in transmit and receive. They are controlled with parallel TTL logic derived from a FPGA that is driven by a 3-wire serial data stream The API Technologies Dual S-Band 100W Tx/Rx Module is designed to operate in ground based active Phased Array Radar systems. It is configured to be suitable for mounting in the antenna array, directly behind the antenna element. Control of the digital phase and amplitude trimmers is by parallel TTL logic derived from an internal FPGA, as is the T/R switch control.
Frequency 3.1 – 3.5GHz Peak Output Power @ 20% duty cycle >100W Output Power stability over freq ±0.8dB Transmit input power level 0dBm Pulse Width 2 – 100μS Duty cycle Up to 20% Pulse droop 0.5dB Max Pulse Rise & Fall time < 100ns TX Input VSWR 1.5:1 RX Input VSWR 2:1 Receiver Gain (reference state) 27dB nom. Rx Gain variation with Freq/Temp 1dB (Freq) ; ±1dB (Temp) (see Note 1) Receiver output 1dB compression +4dBm Receiver Isolation in RX ‘OFF’ state 60dB min Isolation between Receiver channels 50dB min Out of Band Rejection of Receiver : At 2700 and 3900 MHz DC to 2000 MHz
4.5 GHz to 10 GHz
Rx Noise Figure <3dB Digital phase shifter 6 BIT, LSB = 5.625°, RMS phase error < 4° Digital attenuator 6 BIT, LSB = 0.5 dB, RMS error < 1 dB Tx/Rx switching time 200ns Supply Voltages +40V Supply Current 5A Max. Average Power 20% Duty Cycle (Both channels in transmit) RF Performance Mechanical Mass < 1Kg Dimensions 200mm x 90mm x 34.5mm RF connectors Blind Mate (Male) DC and Signal Connector D-type Environmental Operating Temperature -20°C to +55°C (see Note 1) Storage Temperature -30°C to +70°C Damp Heat + 40°C, RH > 95 % Performance: Over temperature, Z0 = 50 , VCC = +40 VDC Note 1: Baseplate temperature held to 35°C ± 5°C Absolute Maximum Ratings Base-plate Temperature -20°C to +55°C Input Power at Tx I/P Port +5dBm @ 100µS Pulse Width, 20% Duty Supply Voltage +45V Typical Performance Schematic Note 1: Only a Single Channel Shown
Typical Performance S-Band DTRM Tx PowerS-Band DTRM Tx Power for 0dBm Input Power Frequency (GHz) Peak Output Power (dBm) S-Band DTRM Tx Output Pulse Shape, 100µs, 20% Duty Cycle Typical Performance Rx Mode, Attenuation Variation at Ref. Phase for 64 Staes Rx Phase w.r.t. Ref. hase at Reference Gain, 64 States Rx Mode, Attenuation Variation at Ref. Phase for 64 States -20 -10 3000 3100 3200 3300 3400 3500 3600 Freq (MHz) Rx Gain (dB's) Rx Phase w.r.t Ref Phase at Reference Gain, 64 States 100 150 200 250 300 350 400 3000 3100 3200 3300 3400 3500 3600 Frequency (MHz) Phase w.r.t Ref Phase (°) +1 855.294.3800 www.apitech.com +44 (0) 1908.574.200 email - info.rf2m@apitech.com http://rf2m.apitech.com Whilst every effort is made to ensure the accuracy of the information contained in this brochure, no responsibility can be accepted for any errors and/or omissions. Descriptions and specifications of products are subject to change without notice.