Ka-band Spaceborne Silicon-Based Multibeam Phased Array Antenna
16 independent beams for both transmitting andreceiving functions
Modular design with reconfigurable function
Allows subarrays to operate independently or as a composite array
TR modules integrated with liquid-cooled micro-channel design
Technical parameters
| Items | Parameters | Remarks | |
| Working Frequency | Rx | 27.5 GHz-31GHz | RHCP |
| Tx | 17.7 GHz-21.2GHz | LHCP | |
| Beams | Rx | 16 | 12 analog beams
4 analog to digital |
| Tx | 16 | 12 analog beams
4 analog to digital |
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| Antenna Gain | 22dBi @ 20GHz, 30GHz | Single sub-array | |
| Scanning Range | ≥±50 ° | ||
| Axial Ratio | ≤2dB @ 0°; ≤5dB @ ±50° | ||
| Beam Switching Time | ≤50us | ||
| VSWR | 1.5 | Total port | |
| Working Bandwidth | ≥500MHz | ||
| EIRP | 33dBW | Normal direction | |
| G/T | ≥-3dB/K | Normal direction | |
| Sidelobe Suppression | First sidelobe suppression ≥14dBc
Second sidelobe suppression ≥17dBc |
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| Beam Pointing Accuracy | ≤1/4 beam width | ||
| Third-order Intermodulation | a) Rx antenna: ≤-25dBc @ scanning rang 50°
(2 carriers tested at an interval of 10MHz, each signal reaching antenna port is -89dBm/m2); b) Tx antenna: ≤-24dBc @ scanning range 50° (Single beam EIRP = 33dBW (tested at 10MHz dual-carrier interval). |
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| EVM | Better than 10% @ rated EIRP, 3dB back-off (QPSK modulation, bandwidth 80Mhz) | ||
| Gain Flatness | ±1dB @ 400MHz | ||
| Receiving Dynamic Range | ≥40dB | ||
| Emission Spurious | ≤-50dBc | ||
| Phase Noise | -60dBc @ 100Hz
-70dBc @ 1KHz -80dBc @ 10KHz -90dBc @ 100KHz |
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| Power Supply | +24VDC (20V ~ 36V) | 4-core Circular Connector | |
| Control Interface | Internet Port | ||
| IF Interface | SMA | ||