A compact short‐ended zor antenna with gain enhancement using EBG loading

A new compact CPW-fed short ended antenna based on composite right/left handed (CRLH) resonant approach is presented in this article. The antenna is operated in series resonant mode and therefore zeroth order resonating (ZOR) frequency can be driven by series elements of the conventional CRLH-TL. Proposed antenna is basically a symmetric ground plane CPW-fed antenna, comprises of meandered line inductor, connected between patch and CPW ground planes. Series gaps are provided by means of an octagonal shaped interdigital capacitor. Proposed antenna shows ZOR property at 2.58–2.68 GHz with 2.74 dB gain at 2.64 GHz. It has been observed that high level of miniaturization leads to lowering the antenna gain, therefore EBG structures are employed on the signal patch to improve the antenna gain. Proposed antenna radiated omni-directionally in xz- plane while bi-directionally in yz- plane with cross polarization level is as low as −30 dB. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1194–1197, 2016

[1]  George V. Eleftheriades,et al.  Dual-band metamaterial-inspired small monopole antenna for WiFi applications , 2009 .

[2]  V. Veselago.  The Electrodynamics of Substances with Simultaneously Negative Values of ∊ and μ , 1968 .

[3]  Tayeb A. Denidni,et al.  Multi-Band Miniaturized Antenna Loaded by ZOR and CSRR Metamaterial Structures With Monopolar Radiation Pattern , 2014, IEEE Transactions on Antennas and Propagation.

[4]  Raghvendra Kumar Chaudhary,et al.  A compact CPW-FED wideband metamaterial antenna with EBG loading , 2015 .

[5]  Mario Sorolla,et al.  Enhanced patch-antenna performance by suppressing surface waves using photonic-bandgap substrates , 1999 .

[6]  T. Itoh,et al.  Infinite Wavelength Resonant Antennas With Monopolar Radiation Pattern Based on Periodic Structures , 2007, IEEE Transactions on Antennas and Propagation.

[7]  Pei-Ling Chi,et al.  Compact and Bandwidth-Enhanced Zeroth-Order Resonant Antenna , 2015, IEEE Antennas and Wireless Propagation Letters.

[8]  Shuyan Yang,et al.  A Bisected Miniaturized ZOR Antenna With Increased Bandwidth and Radiation Efficiency , 2013, IEEE Antennas and Wireless Propagation Letters.

[9]  Raghvendra Kumar Chaudhary,et al.  A Compact Dual-Mode Metamaterial-Inspired Antenna Using Rectangular Type CSRR , 2015 .

[10]  N. Murad,et al.  Composite right/left‐handed dual‐band metamaterial antenna with improved gain and efficiency , 2014 .

[11]  Linda P. B. Katehi,et al.  Micromachined patch antennas , 1998 .

[12]  Yu-De Lin,et al.  Compact Zeroth-Order Resonant Antenna Based on Dual-Arm Spiral Configuration , 2012, IEEE Antennas and Wireless Propagation Letters.

[13]  Guo-Sheng Liu,et al.  Analysis of Directional Logging Tools in Anisotropic and Multieccentric Cylindrically-Layered Earth Formations , 2012, IEEE Transactions on Antennas and Propagation.

[14]  R. Shelby,et al.  Experimental Verification of a Negative Index of Refraction , 2001, Science.

[15]  Mohamad Kamal A. Rahim,et al.  Dual mode metamaterial antenna for wideband applications , 2014 .

[16]  Tatsuo Itoh,et al.  Aperture-coupled patch antenna on UC-PBG substrate , 1999 .

[17]  Wenquan Cao,et al.  Multi-Frequency and Dual-Mode Patch Antenna Based on Electromagnetic Band-gap (EBG) Structure , 2012, IEEE Transactions on Antennas and Propagation.

[18]  Jiang Zhu,et al.  A Compact Transmission-Line Metamaterial Antenna With Extended Bandwidth , 2009, IEEE Antennas and Wireless Propagation Letters.