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.

scholarly journals A Low Profile Wideband Log Periodic Microstrip Antenna Design for C-Band Applications

2019 ◽  
Vol 8 (2) ◽  
pp. 48-52 ◽  
Author(s):  
M. Yerlikaya ◽  
S. S. Gültekin ◽  
D. Uzer
Keyword(s):  
Dielectric Constant ◽  
Microstrip Antenna ◽  
Microstrip Line ◽  
Ground Plane ◽  
Antenna Design ◽  
Tangent Loss ◽  
Low Profile ◽  
Measurement Results ◽  
Simulation Results ◽  
5 Ghz

In this study, a wideband low profile microstrip antenna design for C-band applications is presented. The proposed antenna consists of a monopol log periodic patch in the equilateral triangular dimensions with the microstrip line fed and a rectangular ground plane. The antenna has 9×19.8 mm2 overall size, thickness of 1.6 mm and 4.3 dielectric constant. According to the simulation results, the proposed antenna has a very wide bandwidth while operating in the frequency band of 4.25-7.95 GHz and 5 GHz resonance frequency. The proposed antenna was also prototyped on FR4 substrate with the 0.02 tangent loss and the measurement results were quite similar by the simulated results.

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