COMPACT MULTI-BAND LOOP ANTENNAS USING CPW-BASED CRLH QUARTER-WAVE TYPE RESONATORS | Zendy

Shuangxi Liu | Zendy; Quanyuan Feng | Zendy

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COMPACT MULTI-BAND LOOP ANTENNAS USING CPW-BASED CRLH QUARTER-WAVE TYPE RESONATORS

Author(s) -

Shuangxi Liu,

Quanyuan Feng

Publication year - 2012

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc12012201

Subject(s) - resonator , loop (graph theory) , multi band device , optoelectronics , physics , electrical engineering , electronic engineering , engineering , antenna (radio) , mathematics , combinatorics

In this paper, a novel approach to design compact multi-band loop antennas is proposed. This type of antennas is composed of coplanar waveguide (CPW)-based composite right/left- handed (CRLH) quarter-wave type resonators, and developed on a vialess single layer. Both size reduction and low frequency ratios have been achieved, proflting from the employment of quarter-wave resonators and the high nonlinearity in the left-handed region of CRLH transmission line (TL) dispersion diagram. A sample prototype operating at three negative modes (1.92/2.15/2.64GHz) with an overall size of 29 £ 21:3 £ 1:0mm 3 was manufactured and measured. Measured results show good agreement with EM simulation, exhibiting good impedance matching as well as stably omni-directional radiation patterns at the three operating modes.

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