Miniaturization of Wideband Antennas by Means of Ground Plane Modifications: A Case Study

Ul Haq，Muhammad Aziz1; Koziel，Slawomir1; Cheng，Qingsha S.2

10.1109/COMPEM.2018.8496671

2018-10-17

978-1-5386-1242-2

2018 IEEE International Conference on Computational Electromagnetics, ICCEM 2018

1-3

26-28 March 2018

Chengdu, China

Institute of Electrical and Electronics Engineers Inc.

The most common approach to size reduction of wideband and ultra-wideband antennas (UWB) is to introduce topological modifications of the ground plane, the feeding line, and/or the antenna radiator. The first type of alterations is the most popular due to their efficiency. Here, we carry out a study concerning a particular type of modifications, specifically, a slit under the feed line, in several variations: rectangular and elliptical slits of one and two sections. The effects of the slits on achievable miniaturization rate is investigated using a set of reference UWB antennas. For the sake of fair comparison, the minimum-size structures are obtained through numerical optimization of all antenna parameters in each case. The results indicate that one-section elliptical slit is more advantageous than the one-section rectangular slit: an average miniaturization rate is 26 percent versus 19 percent. For two-section slits the situation is opposite (42 and 33 percent size reduction for rectangular versus elliptical slit). Furthermore, the results are consistent for all benchmark antennas which indicates universal properties of the considered geometry modifications in the context of antenna miniaturization.

antenna miniaturization design optimization elliptical slit EM-driven design ground plane modifications rectangular slit Ultra-wideband (UWB) antennas

其他

英语

EI

Icelandic Centre for Research[163299051]

20184806158962

Antenna feeders ; Antenna grounds ; Antenna radiation ; Computational electromagnetics ; Miniature instruments ; Optimization ; Size determination ; Slot antennas

Electricity and Magnetism:701 ; Radio Systems and Equipment:716.3 ; Optimization Techniques:921.5

2-s2.0-85057251696

Scopus

1.Reykjavik University, School of Science and Engineering, ,Reykjavik,Iceland
2.Southern University of Science and Technology, Department of Electrical and Electronic Engineering, ,Shenzhen, chengq,China

Ul Haq，Muhammad Aziz,Koziel，Slawomir,Cheng，Qingsha S.. Miniaturization of Wideband Antennas by Means of Ground Plane Modifications: A Case Study[C]:Institute of Electrical and Electronics Engineers Inc.,2018:1-3.