A $Q$ -Band Four-Element Phased-Array Front-End Receiver With Integrated Wilkinson Power Combiners in 0.18-$\mu{{\hbox{m}}}$ SiGe BiCMOS Technology

@article{Koh2008A,
  title={A \$Q\$ -Band Four-Element Phased-Array Front-End Receiver With Integrated Wilkinson Power Combiners in 0.18-\$\mu\{\{\hbox\{m\}\}\}\$  SiGe BiCMOS Technology},
  author={Kwang-Jin Koh and G. M. Rebeiz},
  journal={IEEE Transactions on Microwave Theory and Techniques},
  year={2008},
  volume={56},
  pages={2046-2053}
}
A four-element phased-array front-end receiver based on 4-bit RF phase shifters is demonstrated in a standard 0.18-mum SiGe BiCMOS technology for Q-band (30-50 GHz) satellite communications and radar applications. The phased-array receiver uses a corporate-feed approach with on-chip Wilkinson power combiners, and shows a power gain of 10.4 dB with an IIP3 of -13.8 dBm per element at 38.5 GHz and a 3-dB gain bandwidth of 32.8-44 GHz. The rms gain and phase errors are les1.2 dB and les8.7deg for… CONTINUE READING
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1 GHz programmable analog phase shifter for adaptive antennas

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