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A novel CMOS all-pass tunable phase shifter for phased array systems

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3 Author(s)
Mohammadi, A. ; Sch. of Electr. Eng., Iran Univ. of Sci. & Technol., Tehran, Iran ; Ayatollahi, A. ; Abrishamifar, A.

A new current mirror based all-pass, tunable phase shifter architecture is proposed in 0.18 um CMOS, after a brief introduction on phase shifter applications, and comparison between different implementation methods. In the new current-mode approach the cut-off frequency of transistor is the operational limit of the proposed phase-shifter architecture and power consumption for this design is 80 microwatts. Simulations are carried out in HSpice and cover a frequency range from 1 MHz to 50 GHz.

Published in:

Microwave Symposium (MMS), 2009 Mediterrannean

Date of Conference:

15-17 Nov. 2009