A Guo‐shaped patch antenna for hidden WLAN access points

Abstract

This research communication introduces a Chinese‐character artistic antenna, wherein a Guo‐shaped patch antenna is devised for circular‐polarization applications. The novelty is emphasized by Guo‐shaped patch printed in standard SimHei font at the antenna's front end. The artistic patch antenna is singly‐fed and cavity‐backed by a metallic‐box reflector to enhance the forward directivity (~7dBic) and the front‐to‐back radiation ratio (~20 dB). The Guo‐shaped patch exhibits an axial‐ratio bandwidth of 120 MHz that covers the 2.4 GHz band of wireless local‐area network (WLAN) IEEE 802.11b/g/n/ax. The proposed antenna owns an overall dimension of 1λo × 1λo × 0.11λo at 2.5 GHz. ©2018 Wiley Periodicals, Inc. Int J RF and Microwave.

Wideband Single-Fed Circularly Polarized Stacked Patch Antenna With L-Shaped Stub

“…The CP patch antenna in [12] contains a stacked patch with pin-load, which can realize high gain. In addition to the above methods, many single-fed broadband CP antennas have recently been proposed [14][15][16][17][18][19][20][21][22][23]. In [14,15], the L-shaped probe is employed to couple the patch and realize wide AR bandwidth.…”

“…In addition to the above methods, many single-fed broadband CP antennas have recently been proposed [14][15][16][17][18][19][20][21][22][23]. In [14,15], the L-shaped probe is employed to couple the patch and realize wide AR bandwidth. The near-field resonant parasitic CP patch antenna for radio frequency identification (RFID) reader applications yields an AR bandwidth of 9% [16].…”

Ultra‐wideband magnetoelectric antenna with dual polarization and compact size

“…The artistic patch antennas, especially the Chinese‐character‐shaped patch antennas were recognized as a competitive candidate for wideband and multiband circular polarization (CP) antennas. From the very first prototype, the Wang‐shaped patch 8 which evolved from the compensation of the asymmetry of the E‐shaped patch to the Zhong‐ and the Guo‐shaped artistic patch antenna 9,10 and the recently Jia‐shaped patch antenna, 11 all these Chinese‐character‐shaped patch antennas were discovered with good characteristics like unidirectional radiation pattern and relatively wide bandwidth. Besides, a UWB antenna with a 105.8% bandwidth (1.85–6 GHz) was achieved by combining two crossed tapered slot radiation elements with a dial‐shaped parasitic metallic strip 12 .…”