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A Novel Miniature 1–22 GHz 90 ^{\circ} MMIC Phase Shifter with Microstrip Radial Stubs

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3 Author(s)
Yong-sheng Dai ; Nanjing Univ. of Sci. & Technol., Nanjing ; Da-Gang Fang ; Yong-Xin Guo

A novel miniature ultra wide bandwidth 90 monolithic microwave integrated circuit phase shifter with microstrip radial stubs operated from 1 to 22 GHz is presented. The phase shifter exhibits a high performance. Within the whole bandwidth from 1 to 22 GHz, the phase error of the phase shifter is less than 3deg, the return losses of the different phase shift states are more than 14 dB, the insertion loss of all phase shift states are within 3.3plusmn0.5 dB. The chip size of this phase shifter is 1.4 mm times 1.8 mm times 0.1 mm. The proposed phase shifter can be compatible with different polarity control signals without the need of drivers and can also be compatible with either analogue or digital control signals.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:18 ,  Issue: 2 )