24-GHz microstrip grid array antenna excited by capacitive slot

Author

Zihao Chen ; Yue Ping Zhang

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2014

fDate

13-16 July 2014

Firstpage

1

Lastpage

2

Abstract

This paper presents the design of a 24 GHz microstrip grid array antenna excited by capacitive coupling slot on Rogers 5880 substrate. The dimension of the antenna is 70mm×70mm×0.787mm. The capacitive coupling slot of 15mm×0.3mm is located in the middle of the ground plane. Simulation results in Ansoft HFSS indicate that its 10 dB impedance bandwidth is 2.95 GHz from 22 GHz to 24.95 GHz, the maximal peak realized gain is 18 dBi at 24.4 GHz and 3 dB gain bandwidth is 2.15 GHz from 23.03 GHz to 25.18 GHz with broadside radiation patterns at 24 GHz. This work demonstrates that slot excitation is an effective excitation method for microstrip grid array antennas.

Keywords

antenna radiation patterns; microstrip antenna arrays; bandwidth 2.15 GHz; bandwidth 2.95 GHz; broadside radiation patterns; capacitive coupling slot; excitation method; frequency 22 GHz to 24.95 GHz; frequency 23.03 GHz to 25.18 GHz; frequency 24 GHz; frequency 24.4 GHz; microstrip grid array antenna; Arrays; Couplings; Microstrip; Microstrip antenna arrays; Microstrip antennas; Slot antennas; 24 GHz; PCB; grid array antenna; slot excitation;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology and Applied Electromagnetics (ANTEM), 2014 16th International Symposium on

Conference_Location

Victoria, BC

Type

conf

DOI

10.1109/ANTEM.2014.6887695

Filename

6887695