Gain and side-lobe improvement of W-band microstrip array antenna with CSRR for radar applications

Aulia Dewantari, Jaeheung Kim, Se Yeon Jeon, Seok Kim, Min-Ho Ka

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A new method for suppressing surface waves on a millimetre-wave microstrip array antenna is presented. A 10 × 2 patch array antenna is designed at 77 GHz for W-band radar applications. Complementary split ring resonator (CSRR) has been designed at 77 GHz, etched on the antenna ground plane. Simulation and experimental results are compared in terms of the gain and the side lobe level with and without CSRR. CSRR between series patch antenna array could suppress surface waves effectively so that this approach enhances the gain and reduces the side lobe level. The measured gain improvement in the antenna with CSRR is 2.5 dB. The side lobe level of the antenna with CSRR is reduced up to 3.5 dB lower than antenna without CSRR.

Original languageEnglish
Pages (from-to)702-704
Number of pages3
JournalElectronics Letters
Volume53
Issue number11
DOIs
Publication statusPublished - 2017 May 25

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Antenna arrays
Resonators
Radar
Antennas
Surface waves
Antenna lobes
Antenna grounds
Directional patterns (antenna)
Microstrip antennas
Millimeter waves

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Dewantari, Aulia ; Kim, Jaeheung ; Jeon, Se Yeon ; Kim, Seok ; Ka, Min-Ho. / Gain and side-lobe improvement of W-band microstrip array antenna with CSRR for radar applications. In: Electronics Letters. 2017 ; Vol. 53, No. 11. pp. 702-704.
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Gain and side-lobe improvement of W-band microstrip array antenna with CSRR for radar applications. / Dewantari, Aulia; Kim, Jaeheung; Jeon, Se Yeon; Kim, Seok; Ka, Min-Ho.

In: Electronics Letters, Vol. 53, No. 11, 25.05.2017, p. 702-704.

Research output: Contribution to journalArticle

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AU - Ka, Min-Ho

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