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2017-10-02

A Circularly-Polarized Compact Wideband Patch Antenna Loaded by Metamaterial Structures

By Mojtaba Simruni and Shahrokh Jam
Progress In Electromagnetics Research C, Vol. 78, 93-104, 2017
doi:10.2528/PIERC17070702

Abstract

In this paper a compact wideband aperture coupled microstrip patch antenna (MPA) with impedance bandwidth of 26.3% is designed. Size reduction of the radiating element and the slot in the ground plane is achieved by incorporating an interdigital capacitor (IDC) in the patch and a complementary split ring resonator (CSRR) close to the slot which offers composite right/left-hand (CRLH) antenna. An interdigital capacitor in the patch acts as series left-hand component, and the slot together with the CSRR in the ground plane acts as a left-hand parallel inductor. By this technique, the patch and slot dimensions compared with the initial designed antenna are reduced about 26.2% and 30.2%, respectively. Through cutting CSRRs with different arrangements in the ground plane, a dual frequency band antenna is designed. Finally, a compact wideband circularly-polarized (CP) MPA is proposed through imposing various perturbations in the current route in the ground plane of the antenna. The maximum gain and the impedance bandwidth of the designed CP antenna are 8.4 dBi and 25%, respectively. Two designed antennas are fabricated and tested. The measurement results confirm the simulation ones.

Citation


Mojtaba Simruni and Shahrokh Jam, "A Circularly-Polarized Compact Wideband Patch Antenna Loaded by Metamaterial Structures," Progress In Electromagnetics Research C, Vol. 78, 93-104, 2017.
doi:10.2528/PIERC17070702
http://www.jpier.org/PIERC/pier.php?paper=17070702

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