scholarly journals Coaxially Fed Hexagonal Patch Antenna for C- and X-Band Applications with Reduced-Ground Plane

2019 ◽  
Vol 17 (2) ◽  
pp. 136-143 ◽  
Author(s):  
Abhishek Joshi ◽  
Rahul Singhal
Keyword(s):  
Equivalent Circuit ◽  
Patch Antenna ◽  
Ground Plane ◽  
Equivalent Circuit Model ◽  
Circuit Model ◽  
Impedance Bandwidth ◽  
X Band

The consequence of reduced ground plane in a coaxially-fed hexagonal antenna, on impedance and radiation is analyzed and presented here. Measured and simulated impedance results for a designed antenna are compared with the equivalent circuit model in this paper. The reduction in ground plane excited frequencies in upper C-band and lower X-band. The designed hexagonal antenna uses a substrate with a dimension of 32×33.5 mm2 along with a reduced ground plane of area, 10.44×24.44 mm2. The proposed antenna has a 285 MHz and 380 MHz impedance bandwidth in C-band and X-band respectively. The designed antenna with reduced ground plane works well for C-band and X-band applications.

scholarly journals Investigation of Equivalent Circuit Model for a 5G Microstrip Patch Antenna

2021 ◽  
Vol 13 (3) ◽  
pp. 03036-1-03036-4
Author(s):  
Bilal Aghoutane ◽  
◽  
Mohammed El Ghzaoui ◽  
Hanan El Faylali ◽  
Sudipta Das ◽  
...  
Keyword(s):  
Equivalent Circuit ◽  
Patch Antenna ◽  
Equivalent Circuit Model ◽  
Microstrip Patch Antenna ◽  
Circuit Model ◽  
Microstrip Patch

scholarly journals Analysis of Reconfigurable Asymmetric Corner ARC Slotted Patch Antenna for Ultrawide and KU Band Application

2020 ◽  
Vol 9 (4) ◽  
pp. 1105-1110
Keyword(s):  
Patch Antenna ◽  
Ground Plane ◽  
Equivalent Circuit Model ◽  
Axial Ratio ◽  
Wide Band ◽  
Experimental Result ◽  
Impedance Bandwidth ◽  
Rectangular Slot ◽  
Good Agreement ◽  
Ku Band

A reconfigurable asymmetric patch antenna with arced corners loaded with a rectangular slot and a T slot on the partial ground used for UWB and Ku band applications. The discussion is carried out into three segments. In the first segment, the design of patch antenna proposed asymmetric arcs at the corner, two side slits, and one slot in the middle of the patch while a T-slot integrated on the partial ground plane. This presented antenna covers an impedance bandwidth ranging from 3.0 GHz to 16.2GHz with a fractional amount of 132%. It is found that a wide band of 3.0 GHz to 10.7 GHz is achieved by using a T-slot on the partial ground plane with a normal rectangular patch while 10.8 GHz to 16.2 GHz is attained by using two corners arcs with two small slits on the patch. The experimental result shows good agreement of 3-dB axial ratio bandwidth and radiation characteristics with the simulated result of the proposed antenna. The second segment proposes an extracted equivalent circuit model for patch and ground plane of corner arc monopole antenna using EM software package in the ADS platform and made a good agreement with the proposed antenna. Finally in the third segment RF PIN diode is embedded in a rectangular slot of the patch which achieves desired frequency shifting in the required band of operation.

scholarly journals Modal Analysis of Directional Coupler and Its Equivalent Circuit

2019 ◽  
Vol 8 (4) ◽  
pp. 103-107
Author(s):  
M. Mohammadi
Keyword(s):  
Modal Analysis ◽  
Equivalent Circuit ◽  
Rectangular Waveguide ◽  
Directional Coupler ◽  
Equivalent Circuit Model ◽  
Circuit Model ◽  
Mode Matching ◽  
Ansoft Hfss ◽  
X Band ◽  
Matching Technique

A modal analysis for the directional coupler is presented in this paper. The analysis is based on the mode-matching technique. The theory is verified by Ansoft HFSS software at a directional coupler with standard X-band (WR 90) rectangular waveguide ports. Element values of equivalent circuit model are computed by using the S-parameters obtained from the presented method in this paper. In addition this paper has corrected two formulations used in two previous works which have been published.

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