A Ku-Band Gaas Multifunction Transmitter And Receiver Chipset
ELECTRONICS(2020)
Abstract
This paper presents a Ku-band monolithic multifunction transmitter and receiver chipset fabricated in 0.25-mu m GaAs pseudomorphic high-electron mobility transistor technology. The chipset achieves a high level of integration, including a 4-bit 360 degrees digital phase shifter, 5-bit 15.5-dB digital attenuator, amplifier and 9-bit digital serial-to-parallel converter for digital circuit control. Since the multifunction chipset includes a medium power amplifier and a low-noise amplifier, it features high P1dB and low noise figures over the full Ku-band frequencies. The multifunction transmitter shows a peak gain of 16.5 dB with output P1dB of 19.2 dBm at 15 GHz. The multifunction receiver shows a peak gain of 17.3 dB with noise figure of 2.5 dB at 15 GHz. The attenuation range is 15.5 dB with a step of 0.5 dB and the phase shift range is 360 degrees with a step of 22.5 degrees. Each chip area of the transmitter and receiver is 4.2 x 2.8 mm(2).
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Key words
multifunction,transmitter,receiver,attenuator,phase shifter,medium power amplifier,low-noise amplifier,serial-to-parallel converter
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