Difficulty in Beamformer Design
Power Divider Split Signal Strength
For Ka band antenna, >1000 antenna element require 10 stage of power divider which decrease 30dB in total.
High Power Demand in the Last Stage
Link Budget requires high power for last stage as RF signal decrease 30dB after 10 stage power divider. Making RF front end chips hard to design with a balance of P1dB, linearity and gain.
Advantage of Phase Tuner
Combining Phase Shifter and Buffer, Saving Last Stage Beamformer
Replacing traditional beamformer, Phase Tuner provides the whole phase array antenna a steady gain in each stage without high power demand in the last stage. Making a high power antenna solution and an economical CMOS solution feasible.
Tx-Phase Tuner
Tx-Phase Tuner
Integrate phase shifter with PA, Phase Tuner can provide 360 degree phase control with stable power gain at 27~31Ghz without last stage beamformer.
P1dB up to 10dBm
Built-in CMOS PA can provide P1dB 10dBm per stage.
Rx-Phase Tuner
Rx-Phase Tuner
Integrating LNA with the Rx phase shifter, Rx-Phase Tuner can provide 360 degree phase control with stable power gain at 17~21Ghz without last stage beamformer.
Frequency Response
~40dB gain in Rx-Phase Tuner for 17~21Ghz
Noise Figure <1
CMOS LNA in the Rx-Phase Tuner achieved an excellent performance of Noise Figure. It even keeps <2 in 21~28 Ghz.
360° Phase Control
Rx-Phase Tuner can provide 360 degree control with a min resolution <1° and little power loss.