Broadband Tunable Third-Order IMD Cancellation Using Left-Handed Transmission-Line-Based Phase Shifter

Park, Hongwoo; Yoo, Hyoungsuk; Kahng, Sungtek; Kim, Hongjoon

doi:10.1109/LMWC.2015.2427655

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Broadband Tunable Third-Order IMD Cancellation Using Left-Handed Transmission-Line-Based Phase Shifter

Park, Hongwoo;
Yoo, Hyoungsuk;
Kahng, Sungtek;
Kim, Hongjoon

Citations

WEB OF SCIENCE

3

Citations

SCOPUS

4

초록

We demonstrate a broadband tunable third-order intermodulation distortion (IMD) cancellation architecture using a left-handed transmission line (LHTL)-based phase shifter for a feedforward amplifier. The fabricated circuit reduces the third-order IMD of the main amplifier up to 17 dB after adjusting for any frequencies between 1.5 and 2.4 GHz when the frequency difference between the two tones is 2 MHz. In addition, the circuit maintains a spurious-free dynamic range that is greater than 55 dBc at the output. This effective broadband third-order IMD cancellation method is possible because of the broadband and linearly phase-tunable characteristics of the LHTL-based phase shifter.

키워드

Amplifier; feedforward; intermodulation distortion; left-handed; phase shifter; transmission line

제목: Broadband Tunable Third-Order IMD Cancellation Using Left-Handed Transmission-Line-Based Phase Shifter

저자: Park, Hongwoo; Yoo, Hyoungsuk; Kahng, Sungtek; Kim, Hongjoon

DOI: 10.1109/LMWC.2015.2427655

발행일: 2015-07

유형: 정기 학술지(letter(letters to the editor))

저널명: IEEE Microwave and Wireless Components Letters

권: 25

호: 7

페이지: 478 ~ 480

언어: ENG

출판사: Institute of Electrical and Electronics Engineers

발행국가: 미국

분량: 3 페이지

ISSN: E 1558-1764
P 1531-1309