scholarly journals A Compact Circular Patch Antenna for Wireless Network Applications

2018 ◽  
Vol 7 (2.7) ◽  
pp. 462 ◽  
Author(s):  
L Nageswara Rao ◽  
V Santhosh Kumar ◽  
M Basha

The compact double-band circular microstrip patch (MPA) with the etched slot for WLAN architecture is designed. A double recurrence circular patch design along space opening slot sustained with a transmission model is intended to acquire double recurrence task.  The designed antenna model comprises of circular patch and parasitic - slot resonator. The ground plane is arranged with a space opening resonator. By modifying structure parameters, the microstrip patch works at the upper band (5.2 GHz) and parasitic - opening works at bringing down band (2.4 GHz), the two resonators are emanating with two diverse radiation designs. Remembering the true objective to choose the execution of the designed model and the composed structure shows the arrival misfortune less than - 10 B and it is demonstrated with huge impedance coordinating, enhanced radiation example and great VSWR around 1 over the working groups. The investigated configuration is simulated and analyzed with HFSS. The suggested antenna model is reasonable for wireless LAN applications.  

Author(s):  
Dr. N. Srinivasa Rao

In this paper, we have proposed a semi-circular patch antenna with a slot in the patch and a ground plane with a notch. The proposed antenna is designed using FR-4 substrate with a dielectric constant of 4.4 and the height of the substrate is 1.6mm. We simulated the antenna using HFSS and obtained the S11 < -10dB in the range of 3GHz to 15GHz, which covers the UWB range of 3.1GHz to 10.6GHz. An active circuit is designed and simulated using ADS to improve the gain of the antenna when working in a lossy medium other than air.


2014 ◽  
Vol 4 (3) ◽  
Author(s):  
Sanyog Rawat ◽  
K. Sharma

AbstractA novel design of a circular patch antenna having defected ground structure is presented in this communication. The antenna is designed for C-band applications. A wide bandwidth of 60.3% (4.04–7.28) GHz is obtained in the C-band frequency range 4–8 GHz. It is also found through parametric analysis that shape and dimensions of the finite ground plane and slots in the patch are the key factors in improving the bandwidth of the proposed geometry. The antenna is fabricated using FR-4 substrate and parameters like return loss, VSWR and input impedance are measured experimentally.


2021 ◽  
Vol 11 (03) ◽  
pp. 01-11
Author(s):  
Chaitali Mukta ◽  
Mahfujur Rahman ◽  
Abu Zafor Md. Touhidul Islam

This paper presents the design of a compact circular microstrip patch antenna for WLAN applications which covers the band 5.15 to 5.825 GHz. The antenna is designed using 1.4mm thick FR-4 (lossy)substrate with relative permittivity 4.4 and a microstrip line feed is used. The radius of the circular patch is chosen as 7.62mm. To reduce the size and enhance the performance of the proposed antenna, a circular slot is loaded on circular patch and a square slot is etched on the ground plane of dimension 30mm×30mm. Design of the antenna is carried out using CST Microsoft Studio Sonimulation Software. The proposed antenna resonates at 5.5 GHz with a wider bandwidth of 702 MHz and it provides low return loss of -31.58 dB, good gain of 3.23 dB and directivity of 4.28 dBi and high efficiency of around 79% against the resonance frequency. The geometry of the proposed circular antenna with reduced size and its various performance parameters such as return loss, bandwidth, VSWR, gain, directivity, efficiency and radiation pattern plots are presented and discussed


Author(s):  
Bismah Hasan ◽  
Kamran Raza

Slotted circular printed layered patch antenna is designed, simulated and fabricated for 5G (Fifth Generation) wireless communication applications. The antenna consists of slots in the main radiating circular patch element for miniaturizing the size of the radiating element and providing dual band radiation characteristics. The feed line is separated on bottom substrate layer with EBG (Electromagnetic Band-Gap) embedded for enhancing the gain characteristics of the antenna. Superstrate layer is also used for improving the gain of the antenna where the distance from the radiating antenna element is optimized for maximizing the impedance bandwidth and radiation characteristics. The feed realization and impedance matching of the radiating slotted circular patch antenna is done by inducing slot at the middle ground plane of the slot embedded circular patch antenna system. The proposed configuration provides power radiation gain values of more than 5 dB for the Ka band of communications, whereas the impedance bandwidth of the antenna is verified for the dual resonances at 27.5 and 28.5 GHz. Dual band radiation characteristics are attained by embedding and optimizing the slot length and width in the circular patch radiator element that is placed on the upper face of the substrate RT Rogers Duroid 5880 layer. The length of the microstrip feed line embedded in the lower layer of the substrate is optimized for providing required bandwidth characteristics for the dual frequency point radiations. The antenna configuration is designed, modeled and simulated in CST (Central Standard Time) Microwave studio. The antenna is fabricated and measured vs simulated frequency response, gain patterns and current density plots are presented for the verification of antenna operation in the desired frequency bands.


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