Enhancement of the Gain for Microstrip Antennas Using Negative Permeability Metamaterial on Low Temperature Co-Fired Ceramic (LTCC) Substrate

Author

Zhenzhe Liu ; Peng Wang ; Zhiyi Zeng

Author_Institution

Inst. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

12

fYear

2013

fDate

2013

Firstpage

429

Lastpage

432

Abstract

A novel method for enhancement of the gain for microstrip antennas is demonstrated. Compact nested tridimensional split-ring resonators (SRRs) are embedded in low temperature co-fired ceramic (LTCC) substrate integrated with a single patch antenna. The maximum dimension of the SRRs structure is only 0.13λ_g . The SRRs generate an effective magnetic response and give rise to negative effective permeability, which can be designed as a metamaterial insulator to reflect surface waves. A high-gain microstrip antenna is designed for WLAN, operating at 5.2 GHz, surrounded with proposed SRRs in the E-plane. The performance of the antenna shows that the side and backward radiation decreased and the forward radiation increased. Compared to the conventional microstrip antenna, the gain of proposed microstrip antenna is enhanced by 1.5 dB, and the 3-dB beamwidth of the E-plane can be reduced by 14°.

Keywords

antenna radiation patterns; magnetic permeability; metamaterials; microstrip antennas; microwave antennas; microwave resonators; substrates; wireless LAN; E-plane beamwidth; LTCC; SRR; WLAN; compact nested tridimensional split-ring resonators; decrease backward radiation; decrease side radiation; effective magnetic response; frequency 5.2 GHz; gain 1.5 dB; gain 3 dB; gain enhancement; high-gain microstrip antennas; increase forward radiation; low temperature cofired ceramic substrate; metamaterial insulator; negative effective permeability; negative permeability metamaterial; single patch antenna; Gain; low temperature co-fired ceramic (LTCC); microstrip antennas; negative permeability metamaterial; surface wave;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2013.2254697

Filename

6487375