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New miniature 15-20-GHz continuous-phase/amplitude control MMICs using 0.18-μm CMOS technology

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5 Author(s)
Pei-Si Wu ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Hong-Yeh Chang ; Ming-Da Tsai ; Tian-Wei Huang
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The design and performance of two new miniature 360° continuous-phase-control monolithic microwave integrated circuits (MMICs) using the vector sum method are presented. Both are implemented using commercial 0.18-μm CMOS process. The first phase shifter demonstrates all continuous phase and an insertion loss of 8 dB with a 37-dB dynamic range from 15 to 20 GHz. The chip size is 0.95 mm × 0.76 mm. The second phase shifter can achieve all continuous phase and an insertion loss of 16.2 dB with a 38.8-dB dynamic range at the same frequency range. The chip size is 0.71 mm × 0.82 mm. To the best of the authors' knowledge, these circuits are the first demonstration of microwave CMOS phase shifters using the vector sum method with the smallest chip size for all MMIC phase shifters with 360° phase-control range above 5 GHz reported to date.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:54 ,  Issue: 1 )