Title :
Gain Enhancement of 60-GHz Antipodal Tapered Slot Antenna Using Zero-Index Metamaterial
Author :
Mei Sun ; Zhi Ning Chen ; Xianming Qing
Author_Institution :
Inst. for Infocomm Res., A*STAR, Singapore, Singapore
fDate :
4/1/2013 12:00:00 AM
Abstract :
A zero-index metamaterial (ZIM) structure is proposed for the gain enhancement of an antipodal tapered slot antenna (ATSA) at 60-GHz bands. The single ATSA loaded with the proposed ZIM cells exhibits a gain enhancement of up to 2.6 dB in the frequency band of 57-66 GHz. A prototype of a two-element ATSA array loaded with the ZIM cells measures a |S11| of less than -10 dB and gain of 12-13.2 dBi over 57-66 GHz. The measurement results agree with the simulated ones and the gain enhancement of the ZIM cells is confirmed.
Keywords :
slot antenna arrays; ZIM cells; ZIM structure; antipodal tapered slot antenna; frequency 57 GHz to 66 GHz; gain enhancement; two-element ATSA array; zero-index metamaterial; Antenna measurements; Arrays; Gain; Gain measurement; Slot antennas; Substrates; 60-GHz; end-fire antenna; metamaterials; millimeter wave antenna; tapered slot antenna; zero index of refraction;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2012.2237154
