Asymmetric and symmetric modified bow-tie slotted circular patch antennas for circular polarization

Characteristics of Coplanar Bow-Tie Patch Antennas

This paper introduces a new concept of coplanar patch antenna (CPA), which consists of a bow-tie shaped patch surrounded by closely spaced ground conductor and a coplanar waveguide (CPW) feed line. This novel configuration is proposed for use as an element of a phased array antenna specifically designed for radar systems. The main design goal is to devise a patch antenna that operates at 10 GHz...

Symmetric Pattern Patch Antenna For Yielding Circular Polarization

A rectangular patch with a symmetric pattern for obtaining circular polarization with an axial ratio of 2.2 dBi and the same antenna can be operated at multiple frequencies 1.26 GHz, 1.73 GHz, 2.16 GHz and 2.59 GHz suitable for GPS, WLAN and WiFi applications is designed using IE3D software from Zeland. The microstrip patch is constructed using a single layer glass epoxy substrate, having diele...

Suspended Hexagonal Microstrip Antennas for Circular Polarization

Suspended hexagonal microstrip antenna with a single coaxial feed has been proposed for circular polarization. The configuration has been realized by inserting perturbations along two opposite sides of the suspended hexagonal microstrip antenna. The broad bandwidth of 70 MHz has been obtained corresponding to VSWR < 2 and 3 dB axial ratio bandwidth of 16.2 MHz has been achieved for the suspende...

Printed UWB Circular and Modified Circular Disc Monopole Antennas

In this paper, we have investigated printed monopole antennas, which is basically printed microstrip antenna with etched ground plane for UWB applications. In particular, we have simulated two types of UWB printed monopole antennas: circular and modified circular disk monopole antennas. Simple rectangular microstrip lines are used for feeding the printed monopole antennas. This UWB monopole ant...

Comparison between Rectangular and Circular Patch Antennas Array