Frequency dependent characterizaton of a microstrip line over a perforated ground plane

2005 ◽  
Author(s):  
M. Kahrizi ◽  
T.K. Sarkar ◽  
Z.A. Maricevic
Keyword(s):  
Microstrip Line ◽  
Ground Plane ◽  
Frequency Dependent

Microstrip line on ground plane with closely spaced perforations?fringe fields and formulas by synthetic asymptote

2001 ◽  
Vol 32 (3) ◽  
pp. 201-204 ◽  
Author(s):  
Y. L. Chow ◽  
K. L. Wan ◽  
T. K. Sarkar ◽  
B. Kolundzija
Keyword(s):  
Microstrip Line ◽  
Ground Plane ◽  
Fringe Fields

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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