dual_s-band_transmit_receive_module_trm.pdf

MAIA-009992-000000
Dual S-Band 100W Transmit / Receive Module (TRM) 3.1 - 3.5 GHz
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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
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.
RF Performance
Typical Performance
Parameter
Performance
Frequency
3.1 – 3.5GHz
Base-plate Temperature
-20°C to +55°C
Peak Output Power @ 20% duty cycle
>100W
Input Power at Tx I/P Port
+5dBm @ 100µS Pulse Width, 20% Duty
Output Power stability over freq
±0.8dB
Supply Voltage
+45V
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
30dB min
50dB min
50dB min
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
5A Max. Average Power 20% Duty Cycle
(Both channels in transmit)
Supply Current Mechanical
Mass
Dimensions
RF connectors
DC and Signal Connector
< 1Kg
200mm x 90mm x 34.5mm
Blind Mate (Male)
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
Schematic
Note 1: Only a Single Channel Shown
Rx Mode, Attenuation Variation at Ref. Phase for 64 States
Typical Performance Rx Mode, Attenuation Variation at Ref. Phase for 64 Staes
Typical Performance S-Band DTRM
Tx Power
S-Band
DTRM Tx Power for 0dBm Input Power
40
55
54
30
52
Rx Gain (dB's)
Peak Output Power (dBm)
53
51
50
49
20
10
0
48
47
-10
46
45
3
3.1
3.2
3.3
3.4
3.5
3.6
-20
3000
3100
3200
3400
3500
3600
Freq (MHz)
Frequency (GHz)
Rx Phase w.r.t. Ref. hase at Reference Gain, 64 States
Rx Phase w.r.t Ref Phase at Reference Gain, 64 States
400
350
Phase w.r.t Ref Phase (°)
S-Band DTRM Tx Output Pulse Shape, 100µs, 20% Duty Cycle
3300
300
250
200
150
100
50
0
3000
3100
3200
3300
3400
3500
Frequency (MHz)
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.
+44 (0) 1908.574.200
email - [email protected]
http://rf2m.apitech.com
+1 855.294.3800
www.apitech.com
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