Title : ( A HMSIW Circularly Polarized Leaky-Wave Antenna With Backward, Broadside, and Forward Radiation )
Authors: Ali Pourghorban Saghati , Mir Mojtaba Mirsalehi , Mohammad Hassan Neshati ,
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Abstract
A miniaturized frequency-scanning leaky-wave antenna (LWA) with circular polarization (CP) and backward- broadside-forward radiation is presented. Half-mode substrate integrated waveguide (HMSIW) in combination with interdigital capacitors (IDCs) is utilized in order to achieve a composite right/left-handed leaky-wave structure. Ramp-shaped slots are introduced as interdigital capacitors. Using this structure, the balanced condition (in which series and shunt resonances are equal) can be obtained for the unit-cell. As a result, wide bandwidth of 7.4–13.5 GHz with continuous angular scanning of 70 to 70 is achieved. The axial ratio in the direction of the main beam is lower than 3.1. The performance of the antenna is measured, and close agreement between the simulation and measurement is observed.
Keywords
, Composite right/left-handed (CRLH), half mode substrate integrated waveguide, leaky-wave antennas, metamaterials.
@article{paperid:1040695,
author = {Pourghorban Saghati, Ali and Mirsalehi, Mir Mojtaba and Neshati, Mohammad Hassan},
title = {A HMSIW Circularly Polarized Leaky-Wave Antenna With Backward, Broadside, and Forward Radiation},
journal = {IEEE Antennas and Wireless Propagation Letters},
year = {2014},
volume = {13},
number = {2},
month = {March},
issn = {1536-1225},
pages = {451--454},
numpages = {3},
keywords = {Composite right/left-handed (CRLH); half mode
substrate integrated waveguide; leaky-wave antennas;
metamaterials.},
}
%0 Journal Article
%T A HMSIW Circularly Polarized Leaky-Wave Antenna With Backward, Broadside, and Forward Radiation
%A Pourghorban Saghati, Ali
%A Mirsalehi, Mir Mojtaba
%A Neshati, Mohammad Hassan
%J IEEE Antennas and Wireless Propagation Letters
%@ 1536-1225
%D 2014
