Title :
Design of 40-GHz CRLH-TL chip antenna using 0.35-µm CMOS-MEMS technology
Author :
Lin, Chun-Chi ; Chang, Chia-Chan ; Hsieh, Sheng-Chi
Author_Institution :
Dept. of Electr. Eng., Nat. Chung Cheng Univ., Minhsiung, Taiwan
Abstract :
In this paper, we present a compact CMOS chip antenna for on-chip radios. The proposed antenna is constructed by single unit-cell of composite right/left-handed transmission line. According to the zeroth-order resonance, the antenna size is determined by the equivalent lumped circuit elements instead of the wavelength, leading to the beneficial size reduction. The antenna is fabricated using 0.35-μm CMOS-MEMS technology with partial substrate removal for gain enhancement. The antenna size is 0.74 × 0.32 mm2, and the overall chip size is 1.18 × 0.74 mm2 with dummy metals. The measured return loss is 6 dB at 40 GHz and the measured radiation gain estimated by Friis´ transmission formula is -16.75 dBi.
Keywords :
CMOS integrated circuits; antenna radiation patterns; micromechanical devices; millimetre wave antennas; transmission lines; CMOS-MEMS technology; CRLH-TL chip antenna; compact CMOS chip antenna; composite right-left-handed transmission line; equivalent lumped circuit elements; frequency 40 GHz; gain enhancement; loss 6 dB; radiation gain; size 0.35 μm; Antenna measurements; CMOS technology; Distributed parameter circuits; Gain measurement; Loss measurement; Propagation losses; RLC circuits; Resonance; Semiconductor device measurement; Transmission line antennas; CMOS; MEMS; chip antenna; composite right/left-handed transmission line;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2010 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-4725-1
Electronic_ISBN :
978-1-4244-4726-8
DOI :
10.1109/RWS.2010.5434248
