Single Feed Stacked Circularly Polarized Patch Antenna For Dual Band NavIC Receiver of Launch Vehicles

EasyChair Preprint 1584

Abstract

A compact circular polarized antenna for multiband NavIC receivers is presented. Concept of stacked patches fed through single coaxial probe is employed. Two square patches are stacked one above the other to achieve dual band operation. The antenna is designed to receive L1 (1575.42 MHz) band GPS signal and L5(1176.45 MHz) band IRNSS signal. Principle of corner chopping is used to obtain circular polarization at L5 frequency band and a combination of corner chopping and stubs are used to obtain circular polarization and good return loss at L1frequency band. Realization aspects, simulated and measured results of the dual band stacked patch antenna are discussed here. The proposed antenna is designed, simulated and fabricated. This antenna has achieved a bandwidth of 2.1% and 3.5% at L5 and L1 frequency bands respectively. The measured gain at L1 frequency is 6.1dBi and at L5 frequency is 5.9dBi. This antenna is proposed to be used in launch vehicle applications to receive both GPS and IRNSS signals with omnidirectional coverage in L-Band.

Keyphrases: GPS, IRNSS, NavIC, Omnidirectional, circular polarization, stacked patch

@booklet{EasyChair:1584,
  author    = {Satya Bhushan Shukla and Vidya K A and Thomas Chacko and K.K. Mukundan},
  title     = {Single Feed Stacked Circularly Polarized Patch Antenna For Dual Band NavIC Receiver of Launch Vehicles},
  howpublished = {EasyChair Preprint 1584},
  year      = {EasyChair, 2019}}