High-efficiency compact SRR–CSRR–SIW antenna based on CRLH-TL

Abstract

A high-efficiency compact split-ring resonator (SRR)–complimentary split-ring resonator (CSRR)–substrate integrated waveguide (SIW) rectangular resonator antenna based on a composite right/left-handed transmission line is presented in this paper. A four-element rectangular CSRR structure is etched on the front of the antenna, and a four-element rectangular SRR structure is loaded on the back of the metal to correspond with each other, thus forming a composite right/left-handed transmission line structure. By meandering technique, a rectangular CSRR is etched on the front of the metal surface to reduce the frequency and realize the miniaturization of the antenna. Combined with SIW rectangular resonator, the high-efficiency compact antenna is finally realized. Simulation and experimental results show that the −10 dB impedance bandwidth of the SRR–CSRR–SIW rectangular resonator antenna is 5.26∼5.29 GHz (1.14%) and 9.07∼9.15 GHz (0.88%). The resonance frequency is 5.26 and 9.11 GHz. The gains are 5.33 and 5.25 dBi. The antenna can be widely used in WLAN and WiMAX.

KEYWORDS:

• CRLH-TL
• SRR
• CSRR
• SIW
• antenna

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by Chongqing Natural Science Foundation Project [grant number cstc2018jcyjAX0014]; Chongqing Technology Innovation and Application Development Project [grant number cstc2019jscx-msxmX0079].

Notes on contributors

Li He

Li He received the BS and MS degrees in electronic engineering from the Chongqing University of Posts and Telecommunications, China, in 2018 and 2021, respectively. Her research interest includes antenna and ratio frequency device.

Shenghong Yi

Shenghong Yi received his BS and MS degrees in electrical engineering from Chongqing University of Posts and Telecommunications in 2018 and 2022, respectively, and his current research interests are in digital pre-distortion algorithms and their hardware implementation.

Hong Yang

Prof. Hong Yang received his BE and ME degrees from Southeast University and University of Electronic Science and Technology of China in 1988 and 1995, respectively, and is mainly engaged in research and development in the field of microelectronic devices and ultra-large scale integrated circuit design.