Ku-Ka Dual-frequency Feed

  • Ku-Ka Dual-frequency Feed Technical SpecificationDownload
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Description

1.Technical requirements


 
Item Specification Requirements Notes
1
Working Frequency  
Tx(GHz)
 
29.4~31.0(Ka)  
13.75~14.5;(Ku)  
 
Rx(GHz)
 
19.6~21.2;(Ka)  
11.45~11.70 ;12.25~12.75; (Ku)  
2 Polarization Ka-Tx LHCP  
Ka-Rx RHCP  
Ku frequency Linear  
3 Cross polarization (Ku) ≥35dB  
4 Axis ratio (Ka) ≤0.8dB  
5 VSWR Ku-Rx Try to VSWR≤1.3, Guarantee VSWR≤1.35  
Ku-Tx ≤1.25  
Ka-frequency ≤1.25  
6 Channel isolation Ku-Tx -Ku-Rx ≥85 dB  
Ku-Tx -Ka-Tx ≥85 dB  
Ku-Tx- Ka-Rx ≥85 dB  
Ka-Tx- Ka-Rx ≥85 dB  
Ka-Tx- Ku-Tx ≥85 dB  
Ka-Tx- Ku-Rx ≥85 dB  
7 Channel loss Ku-Rx Channel≤0.9 dB(including Ku,Ka TRF)  
Ku-Tx Channel≤0.8 dBincluding Polarization Tx joint);  
Ka-RxChannel≤0.8 dBincludingKa TRF  
Ka-Tx Channel≤0.8 dB  
8 Horn illumination angle ±23°  
9 Horn edge
Irradiation level value
-15dB ~-19 dBthe Ku-Rx frequency-13dB ~-19 dB);  
10 Level difference Ku-Rx ≤3.5dB  
Ku-Tx ≤2.5dB  
Ka-Rx ≤2dB  
Ka-Tx ≤2dB  
11 Coating method silver  
12 RF interface Ku frequency BJ120  
Ka-Rx BJ220  
Ka-Tx BJ320  
13 Power ≥1000 W