scholarly journals CIRCULARLY POLARIZED ARRAYS OF CAVITY BACKED SLOT ANTENNAS FOR X-BAND SATELLITE COMMUNICATIONS

2008 ◽  
Vol 9 ◽  
pp. 179-198 ◽  
Author(s):  
Eman M. A. Eldesouki ◽  
Khalid Fawzi Ahmed Hussein ◽  
Adel M. El-Nadi
Keyword(s):  
Satellite Communications ◽  
Slot Antennas ◽  
Circularly Polarized ◽  
X Band

scholarly journals Low-Profile Dual Circularly Polarized Antenna Array for Satellite Communications in the X Band

2012 ◽  
Vol 60 (5) ◽  
pp. 2276-2284 ◽  
Author(s):  
Andrés Garcia-Aguilar ◽  
José-Manuel Inclan-Alonso ◽  
Lucía Vigil-Herrero ◽  
José-Manuel Fernandez-Gonzalez ◽  
Manuel Sierra-Perez
Keyword(s):  
Antenna Array ◽  
Satellite Communications ◽  
Circularly Polarized ◽  
Low Profile ◽  
X Band

scholarly journals Dual-Band Circularly Polarized Shared-Aperture Array for $C$ -/ $X$ -Band Satellite Communications

2017 ◽  
Vol 65 (10) ◽  
pp. 5171-5178 ◽  
Author(s):  
Chun-Xu Mao ◽  
Steven Gao ◽  
Yi Wang ◽  
Qing-Xin Chu ◽  
Xue-Xia Yang
Keyword(s):  
Satellite Communications ◽  
Dual Band ◽  
Circularly Polarized ◽  
X Band ◽  
Aperture Array

scholarly journals Miniaturized Triple seven Shaped Microstrip patch Antenna for X band Satellite Communications

2018 ◽  
Vol 11 (19) ◽  
pp. 1-4
Author(s):  
V. Keral Shalini ◽  
M. Annakamatchi ◽  
S. Arthireena ◽  
◽  
◽  
...  
Keyword(s):  
Patch Antenna ◽  
Satellite Communications ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch ◽  
X Band

A novel design of circularly polarized ring CDRA with wideband impedance bandwidth using slotted microstrip feed line for X-band applications

2021 ◽  
pp. 1-10
Author(s):  
Chandravilash Rai ◽  
Sanjai Singh ◽  
Ashutosh Kumar Singh ◽  
Ramesh Kumar Verma
Keyword(s):  
Axial Ratio ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Circularly Polarized ◽  
Feed Line ◽  
X Band ◽  
Novel Design ◽  
Two Hybrid ◽  
Microstrip Feed Line ◽  
Microstrip Feed

Abstract A circularly polarized ring cylindrical dielectric resonator antenna (ring-CDRA) of wideband impedance bandwidth is presented in this article. The proposed ring CDRA consist of an inverted rectangular (tilted rectangular) shaped aperture and inverted L-shaped slotted microstrip feed line. The tilted rectangular shaped aperture and inverted L-shaped microstrip feed line generate two-hybrid mode HEM11δ and HEM12δ while ring CDRA and slotted microstrip feed line are used for the enhancement of impedance bandwidth. The proposed ring CDRA is resonating between 6.08 and 12.2 GHz with 66.95% (6120 MHz) impedance bandwidth. The axial ratio (AR) bandwidth of 6.99% (780 MHz) is obtained between 10.76 and 11.54 GHz with a minimum AR value of 0.2 dB at a frequency of 11 GHz. The proposed geometry of ring CDRA has been validated with measurement performed by VNA and anechoic chamber. The operating range of the proposed radiator is useful for different applications in X-band.

Circularly Polarized Right Angle Slot Antennas for WLAN of IEEE 802.11b/g

2008 ◽  
Author(s):  
A. Pomsathit ◽  
C. Benjangkaprasert ◽  
N. Anantrasirichai ◽  
V. Chutchavong ◽  
T. Wakabayashi
Keyword(s):  
Ieee 802.11B ◽  
Slot Antennas ◽  
Circularly Polarized

Dual circularly polarized radial line slot antennas

1995 ◽  
Vol 43 (8) ◽  
pp. 874-876 ◽  
Author(s):  
M. Takahashi ◽  
M. Ando ◽  
N. Goto ◽  
Y. Numano ◽  
M. Suzuki ◽  
...  
Keyword(s):  
Radial Line ◽  
Slot Antennas ◽  
Circularly Polarized

scholarly journals X-band compact dual circularly polarized isoflux antenna for nanosatellite applications

2017 ◽  
Vol 9 (7) ◽  
pp. 1509-1516 ◽  
Author(s):  
Eric Arnaud ◽  
Cyrille Menudier ◽  
Jamil Fouany ◽  
Thierry Monediere ◽  
Marc Thevenot
Keyword(s):  
Circular Polarization ◽  
Microstrip Line ◽  
Ground Plane ◽  
Axial Ratio ◽  
Horn Antenna ◽  
Azimuth Angle ◽  
Original Solution ◽  
Circularly Polarized ◽  
X Band

This paper presents an original solution to design a compact dual circularly polarized isoflux antenna for nanosatellite applications. This kind of antenna has been previously designed in our laboratory, for a single circular polarization. This antenna is composed of a dual circularly polarized feed and a choke horn antenna. This feed is a cross-shaped slot in the ground plane, which provides coupling between a patch and a ring microstrip line with two ports. It is located at the center of a choke horn antenna. The simulated antenna presents an axial ratio <3 dB and a realized gain close to 0 dB over a 400 MHz bandwidth (8.0–8.4 GHz) at the limit of coverage, i.e. 65° whatever the azimuth angle (φ) and the port. A 20 dB matching for each port and 13 dB isolation characteristics between the two ports have been achieved on this bandwidth. It has been realized and successfully measured.

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