Band Reject Filter – Coaxial
CMC Part Number 600175
| Specifications | |
| Reject Frequency | 9.338 GHz |
| 52 dB BW | +/- 145 MHz |
| 3 dB BW | +/- 270 MHz |
| Passband | 7.0 – 12.0 GHz |
| Passband Ins Loss | 1.5 dB Max |
| Passband VSWR | 2.0:1 Max |
| Connectors | TNC Female |
Low Pass Filters
LC Series – Coaxial
Power Combiners
CMC offers Power Combiners for summing multiple coherent power amplifier stages into a single high power output. Shown in L-Band, these combiners are availble in a frequency band to fit you application.
Satellite Earth Station Assemblies
CMC offers Satellite Earth Station Assemblies to interface between Receiver, Transmitter, and Antenna. Each assembly is optimized to reduce inter-component interference, minimize insertion loss, and provide the lowest possible VSWR and flattest possible phase and amplitude response. Filtering, power monitoring, isolation, harmonic suppression, signal routing and dummy test load provisions may all be addressed in a single integrated assembly. Configuration and RF performance are tailored to each customer’s individual specifications and requirements. Racking and support structures can be provided for fixed site or transportable applications.
Weather Radar Assemblies
CMC offers fully integrated Front End / Transmitter Assemblies to interface between Receiver, Transmitter, and Antenna. Each assembly is optimized to reduce inter-component interferance, minimize insertion loss, and provide the lowest possible VSWR. Configuration and RF performance are tailored to each customer’s individual specifications and requirements.
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C-Band Front End/Transmitter Assy for Dual Polarized Radars |
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X-Band Front End/Transmitter Assy for Dual Polarized Radars |
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X-Band Front End/Transmitter Assy |
| C-Band Front End/Transmitter Assy |  |
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C-Band Front End/Transmitter Assy |
Weather Radar Components
CMC offers a wide array of passive High Power RF components in S, C, and X Bands. All can be tailored to you precise performance specifications. The components are available individually, or can be provided as an integrated, optimized assembly to connect you transmitter, receiver and antenna.
Dual Passband Filters
Dual Passband Filters provide two separate and distinct passbands for a single input and a single output connection. Rejection is provided above, below and in between both bands. Dual Passband Filters are offered in both coax and waveguide mediums. Bandwidths may be narrow or wide and are designed to meet your specific requirements.
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| DUAL BANDPASS FILTER CMC P/N 504700 FREQ RANGE: 2.7 to 2.9 GHz 3 dB BW: 10 MHz, each channel 60 dB BW: ±36 MHz, each channel INS LOSS: 0.5 dB, each channel PASSBAND VSWR: 1.15:1 POWER HANDLING: 25 KW, peak 2.5 KW, avg IN/OUT: WR284 waveguide |
CMC P/N 307250
CHANNEL 1: 1217 – 1237 MHz
CHANNEL 2: 1565 – 1585 MHz
INSERTION LOSS: 2.0 dB per CHANNEL
ISOLATION BETWEEN CHANNELS: 30 dB min
Fixed Waveguide Bandpass Filters
FW Series
Fixed Filter Examples – Waveguide
| CMC Part Number | 400435 |
| Center Frequency: | 8150 MHz |
| Passband: | 7.9 – 8.4 GHz |
| Passband VSWR: | 1.4:1 MAX |
| Ins Loss: | 1.0 dB MAX |
| Rejection: | 110 dB MIN @ 7.75 GHz |
| Power Handling: | 3 KW MAX |
| 2nd Harmonic Attenuation: | 60 dB |
DESCRIPTION:
The FW Series Filters are available in 2 through 6 cavities with tuning ranges from 1,600 – 40,000 MHz. These units are constructed in lightweight aluminum and operate in the TE 111 cylindrical mode. All filters in this series are temperature compensated and are designed to meet the latest military specification. Variations in bandwidth and tuning range which are different from the standard units are available. Please send us your specific requirements.
| Standard Features | Options |
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Fixed Coax Bandpass Filters
FC Series
Fixed Filter Examples – Coaxial
| CMC Part No.: | 300750 |
| Center Frequency: | 2.1 GHz |
| Passband: | 1.6 – 2.6 GHz |
| Passband VSWR: | 1.4:1 max. |
| Passband Ins Loss: | 1.5 dB max. |
| Rejection: | 50 dB min. @ 1.5 and 2.7 GHz 50 dB min. 2.7 – 18.0 GHz |
| CMC Part No.: | 300850 |
| Center Frequency: | 401.5 MHz |
| Passband: | 8 MHz |
| 3 dB BW | 14 MHz |
| Passband VSWR: | 1.4:1 max. |
| Ins Loss: | 1.0 dB max. |
| Rejection: | 70 dB min. @ f0 ± 28 MHz |
The FC Series Filters yield a butterworth (maximally flat) response and are available with 2 thru 6 cavities. All conducting surfaces are silver plated to minimize insertion loss in the passband. Filters in this series are available from 395-8400 MHz. Outline drawings available upon request.
Fixed Quadriplexer
CMC P/N 806360 combines the output of four transmitters (2 in X-Band and 2 in Ku Band) to a common antenna. Channel bandwidths range from 200 MHz to 530 MHz. Isolation between channels exceeds 90 dB. Insertion Loss ranges from 0.8 to 1.2 dB per channel. Integral harmonic suppression filters and power monitoring couplers are included. Interface connections to coax and/or waveguide are available. The package is extremely compact, low profile, light weight and rugged.
