Hostname: page-component-76fb5796d-r6qrq Total loading time: 0 Render date: 2024-04-26T10:32:06.904Z Has data issue: false hasContentIssue false
  • English
  • Français

Bandwidth enhancement of compact patch antennas by loading inverted “L” and “T” strips

Published online by Cambridge University Press:  15 September 2020

Abdelheq Boukarkar Open the ORCID record for Abdelheq Boukarkar [Opens in a new window]  and
Rachdi Satouh
Abdelheq Boukarkar*
Affiliation:
Ècole Supérieure Ali CHABATI, Algiers, Algeria
*
Author for correspondence: Abdelheq Boukarkar, E-mail: abdelheq.boukarkar@gmail.com
Get access Rights & Permissions [Opens in a new window]

Abstract

We propose simple designs of compact patch antennas with bandwidth enhancement. Firstly, an inverted “L” strip is loaded onto the corner of one radiating patch edge to create an additional resonant mode which can be combined with that one of the conventional patch to enhance the operating bandwidth. Secondly, the “L” strip is replaced by inverted “T” strip to improve further the bandwidth by creating two adjustable resonant modes. The two proposed patch antennas have the particularity of enhancing the bandwidth significantly without increasing their profile and their overall sizes. Two antenna prototypes are fabricated and tested. Measurements reveal that the patch antenna loaded with “L” strip has stable radiation characteristics with 5.2 times enhancement in the relative bandwidth compared with a conventional patch antenna. The antenna loaded with inverted “T” strip has wider bandwidth (6.25 times wider than the conventional patch) and covers the operating band 5.07–5.89 GHz (15%) with measured peak gain and peak efficiency of 6.25 dBi and 78%, respectively. The proposed antennas are easy to fabricate, have a low-profile, and exhibit good performances which make them good candidates to use in real wireless applications.

Keywords

Patch antennabandwidth enhancementresonant modes
Type
Antenna Design, Modelling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 13 , Issue 5 , June 2021 , pp. 478 - 485
Check for updates
Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press in association with the European Microwave Association

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Yang, Z, Yang, H, Hong, J and Li, Y (2014) Bandwidth enhancement of a polarization-reconfigurable patch antenna with stair-slots on the ground. IEEE Antennas and Wireless Propagation Letters 13, 579–582.Google Scholar
Islam, S and Latrach, M (2015) Bandwidth enhancement and size reduction of patch antenna by etching linear slots in the ground plane. 1st URSI Atlantic Radio Science Conference (URSI AT-RASC), Las Palmas.CrossRefGoogle Scholar
Thatere, A, Zade, PL and Arya, D (2015) Bandwidth enhancement of microstrip patch antenna using “U” slot with modified ground plane. International Conference on Microwave, Optical and Communication Engineering (ICMOCE), Bhubaneswar.Google Scholar
Rameswarudu, ES (2016) Bandwidth enhancement defected ground structure microstrip patch antenna for K and Ka band applications. 2nd International Conference on Advances in Electrical, Electronics, Information, Communication and Bio-Informatics (AEEICB), Chennai.CrossRefGoogle Scholar
Liu, N, Zhu, L and Choi, W (2017) A differential-fed microstrip patch antenna with bandwidth enhancement under operation of TM10 and TM30 modes. IEEE Transactions on Antennas and Propagation 65, 1607–1614.CrossRefGoogle Scholar
Wang, J, Liu, Q and Zhu, L (2017) Bandwidth enhancement of a differential-fed equilateral triangular patch antenna via loading of shorting posts. IEEE Transactions on Antennas and Propagation 65, 36–43.CrossRefGoogle Scholar
Malekpoor, H and Jam, S (2015) Analysis on bandwidth enhancement of compact probe-fed patch antenna with equivalent transmission line model. IET Microwaves, Antennas & Propagation 9, 1136–1143.CrossRefGoogle Scholar
Wen, Y, Yang, D, Zeng, H, Zou, M and Pan, J (2018) Bandwidth enhancement of low-profile microstrip antenna for MIMO applications. IEEE Transactions on Antennas and Propagation 66, 1064–1075.CrossRefGoogle Scholar
Xu, KD, Xu, H, Liu, Y, Li, J and Liu, QH (2018) Microstrip patch antennas with multiple parasitic patches and shorting vias for bandwidth enhancement. IEEE Access 6, 11624–11633.CrossRefGoogle Scholar
Cao, W and Hong, W (2016) Bandwidth and gain enhancement for single-fed compact microstrip antenna by loading with parasitical patches. IEEE International Conference on Microwave and Millimeter Wave Technology (ICMMT), Beijing.Google Scholar
Reddy, MH, Joany, RM, Reddy, MJ, Sugadev, M and Logashanmugam, E (2017) Bandwidth enhancement of microstrip patch antenna using parasitic patch. IEEE International Conference on Smart Technologies and Management for Computing, Communication, Controls, Energy and Materials (ICSTM), Chennai.CrossRefGoogle Scholar
Cai, T, Wang, G, Zhang, X, Wang, Y, Zong, B and Xu, H (2015) Compact microstrip antenna with enhanced bandwidth by loading magneto-electro-dielectric planar waveguided metamaterials. IEEE Transactions on Antennas and Propagation 63, 2306–2311.CrossRefGoogle Scholar
Nasimuddin, N, Chen, ZN and Qing, X (2016) Bandwidth enhancement of a single-feed circularly polarized antenna using a metasurface metamaterial-based wideband CP rectangular microstrip antenna. IEEE Antennas and Propagation Magazine 58, 39–46.CrossRefGoogle Scholar
Zhang, J, Zhu, L, Wu, Q, Liu, N and Wu, W (2016) A compact microstrip-fed patch antenna with enhanced bandwidth and harmonic suppression. IEEE Transactions on Antennas and Propagation 64, 5030–5037.CrossRefGoogle Scholar
Yasin, T and Baktur, R (2017) Bandwidth enhancement of meshed patch antennas through proximity coupling. IEEE Antennas and Wireless Propagation Letters 16, 2501–2504.CrossRefGoogle Scholar
Mondal, K and Sarkar, P (2017) Enhancement of the gain and bandwidth of the microstrip patch antenna with modified ground plane. International Journal of Microwave and Wireless Technologies 5, 1179–1184.CrossRefGoogle Scholar
Tiwari, R, Singh, P and Kumar Kanaujia, B (2019) Bandwidth enhancement using modified L-probe fed slotted patch antenna for WLAN and UMTS applications. International Journal of Microwave and Wireless Technologies 3, 302–312.CrossRefGoogle Scholar
Boukarkar, A, Lin, XQ, Yu, JW, Mei, P, Jiang, Y and Yu, YQ (2017) A highly integrated independently tunable triple-band patch antenna. IEEE Antennas and Wireless Propagation Letters 16, 2216–2219.CrossRefGoogle Scholar
Chen, Y and Wang, C-F (2015) Characteristic Modes: Theory and Applications in Antenna Engineering, USA: john wiley and sons.CrossRefGoogle Scholar
Liu, N, Gao, S, Zhu, L, Ji, L, Yang, L and Zheng, H (2020) Low-profile microstrip patch antenna with simultaneous enhanced bandwidth, beamwidth, and cross-polarisation under dual resonance. IET Microwaves Antennas and Propagation 14, 360–365.CrossRefGoogle Scholar