Omni-directional Slotted Waveguide Antenna with Low Omni Ripple at MM Wave

Defence Science Journal

Pramendra Kumar Verma¹  Raj Kumar¹  Mahakar Singh¹ 

[1] Defence Electronics Applications Laboratory, Dehradun

关键词: Millimeter wave;    omni-directional;    radiation pattern;    slotted waveguide antennae;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

The paper describes the design, simulation, and realisation of a slotted waveguide based horizontally polarized omni-directional antenna at millimeter wave frequency. This design has been optimised for minimum ripple in omni pattern and wide elevation coverage. It is based on radiating slots on both sides of waveguide for generating omni pattern and reduced height waveguide along with metallic wings on both sides used to obtain minimum omni pattern variation. The designed antenna has been simulated on finite element method-based ANSYS’s HFSS EM Simulator software using proper boundary conditions. A metallic strip on both side of slot on upper face of antenna has been used to provide flatness as well as strength to antenna. The antenna has the advantages of being robust, low cost, and easy to fabricate being in waveguide configuration. Measured VSWR of antenna is less than 2.0 over the frequency band of 37-40 GHz and minimum omni gain of the antenna is 0 dBi over the frequency band. Defence Science Journal, Vol. 65, No. 2, March 2015, pp.159-162, DOI:http://dx.doi.org/10.14429/dsj.65.8025

【 授权许可】

Unknown