Dielectric EBG Corner Reflector Antenna

This article analyzes the radiation principle of a slot‐coupled hemispherical dielectric resonator antenna (DRA) integrated with a single‐layer metamaterial (MTM) superstrate, investigating it both numerically and experimentally. It creates a compact high directive DRA incorporating MTM superstrate. The proposed MTM medium consists of broadside coupled planar E‐shaped resonator periodic unit cell exhibiting low loss and a low refractive index over a broad frequency band. Measurements on fabricated prototypes to verify numerical results from full‐wave simulations, and they show more than 6 dB increase in directivity of the DRA.

Section: Introductionmentioning

confidence: 99%

DRA gain enhancement using a planar metamaterial superstrate

Panda

Sahu

Mishra

2018

“…A dielectric EBG corner reflector antenna realized using dielectric rods arranged in a square lattice has been described for 40% fractional impedance bandwidth. 46 Basir et al 47 have designed an EBG based wearable rectangular patch antenna and analyzed the improved bandwidth, return loss, gain and radiation efficiency by 3.4%, 8.64 dB, 3.64 dBi, 9%, respectively at an operating frequency of 2.4 GHz. Kumar and Shinde 48 have proposed the performance improvement in the bandwidth by 20.5% and in gain by 2.44 dB of a patch antenna with fractal EBG.…”

Section: B a N D W I D T H I M P R O V E M E N T U S I N G E B G S mentioning

confidence: 99%

“…PBG‐coplanar waveguide (PBG‐CPW) structured antenna has been demonstrated for increasing the bandwidth of microstrip antennas. A dielectric EBG corner reflector antenna realized using dielectric rods arranged in a square lattice has been described for 40% fractional impedance bandwidth . Basir et al have designed an EBG based wearable rectangular patch antenna and analyzed the improved bandwidth, return loss, gain and radiation efficiency by 3.4%, 8.64 dB, 3.64 dBi, 9%, respectively at an operating frequency of 2.4 GHz.…”

Section: Bandwidth Improvement Using Ebg Structuresmentioning

confidence: 99%

See 1 more Smart Citation

Electromagnetic band-gap structured printed antennas: A feature-oriented survey

Peddakrishna

Khan

Де

2017

Wireless communication systems are playing an important role in different sectors of human society. Printed antennas are considered as the critical enabling technologies for these systems. The technology related to the design and development of printed antennas have been continuously improved from the structural view of configuration to antenna features improvement. Electromagnetic bandgap (EBG) structures have played a significant role in improving the features of printed antennas. In this paper, authors have restricted a feature–oriented comprehensive survey on EBG‐structured printed antennas. This type of survey is primarily required for the beginner working on EBG structures/EBG‐structured printed antennas. Such a survey process is rarely carried out in the open literature to the best of authors' knowledge. The proposed survey process is confined only to five different feature classifications; bandwidth improvement, gain improvement, dual‐band/multi‐band characteristics, band‐notch characteristics, and compact and low profile, respectively.

“…The implementation of FSS and EBG based superstrates have been of wide discussion 11 . With the increase in demand of LHMs for their unique engineered characteristics, resonating cavities have been of a great interest to researchers in present scenario.…”

Section: Introductionmentioning

confidence: 99%

Polarization reconfigurability enabled metamaterial inspired dielectric resonator based Fabry‐Perot resonator cavity antenna with high gain and bandwidth

Das

Sahu

2021

A novel metamaterial inspired small array Fabry‐Perot Resonator cavity antenna is designed over a wide‐band dielectric resonator antenna to enhance gain and bandwidth operating at C‐band applications. Further, the cavity resonator is modified with the application of 12 no. of RF p‐i‐n diodes between the upper layer of the posterior unit‐cells to achieve the polarization reconfigurability (PR) keeping the bandwidth, gain and efficiency intact. The overall dimension of the proposed antenna is 0.8 λ × 0.8 λ × 0.56 λ. With the PR architecture, the antenna imparts 4.8 GHz bandwidth operating between 4 and 8.8 GHz with an average simulated efficiency of 72% and an average gain of 20 dBi throughout the operating band. The specific alignment of the diode polarity enables the model to obtain left‐handed circular polarization and/or right‐handed circular polarization.