Title :
An inductorless RC-based quadrature phase generator and its application to vector-sum phase shifter
Author :
Tzu-Chao Yan ; Wei-Zhen Lin ; Chien-Nan Kuo
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao-Tung Univ., Hsinchu, Taiwan
Abstract :
An inductorless quadrature phase generator is designed and implemented in 0.18 μm CMOS technology. The proposed circuit is composed of two resistors, two capacitors, and four differential amplifiers. The performance of proposed circuit is verified by a single sideband (SSB) mixer and a vector-sum phase shifter. Measurement results show that the image rejection ratio is 42.38 dBc at 2.16 GHz. The measured RMS phase error and RMS magnitude error are below 3.5 degrees and 0.55 dB in 2-2.6 GHz, respectively.
Keywords :
CMOS integrated circuits; RC circuits; UHF integrated circuits; capacitors; differential amplifiers; integrated circuit design; mixers (circuits); phase shifters; resistors; CMOS; capacitors; differential amplifiers; frequency 2 GHz to 2.6 GHz; inductorless RC-based quadrature phase generator; resistors; single sideband mixer; size 0.18 mum; vector-sum phase shifter; Amplitude modulation; Differential amplifiers; Generators; Mixers; Phase shifters; Power demand; Semiconductor device measurement; image rejection ratio; inductorless; quadrature phase generator; single sideband mixer; vector-sum phase shifter;
Conference_Titel :
Silicon Monolithic Integrated Circuits in Rf Systems (SiRF), 2014 IEEE 14th Topical Meeting on
Conference_Location :
Newport Beach, CA
DOI :
10.1109/SiRF.2014.6828518
