circular slot and antenna and pier - volume PIER Journals PIER PIER B pp couple imut PIER C PIER M PIER Letters Paper ID Paper L Y and T Y Han Microstripfed circular slot antenna for circular polarization Microwave Opt This paper presents the study of a circular slot antenna for ultrawideband UWB applications Antenna is fed by a circular open ended microstrip line The frequency band considered is from 4 to 14 GHz which has approved as a commercial UWB band A broadband circular arcshaped slot antenna is proposed in this paper which operates from 251 GHz to 315 GHz The antenna is based on a substrateintegrated waveguide SIW and fed through a grounded coplanar waveguide GCPW A circular arcshaped slot is presented instead of a conventional narrow rectangular slot to extend bandwidth Ultrawideband circular slot antenna with reconfigurable SlotOptimized Circular Antenna Design for Advanced The design of a squarerring slot antenna for circular Anubhav Kumar Asok De and Rakesh Kumar Jain Gain Enhancement Using Modified Circular Loop FSS Loaded with Slot Antenna for Sub6 GHz 5G Application Progress In Electromagnetics Research Letters Vol 98 4148 2021 volume PIER Journals volume PIER Journals volume PIER Journals volume PIER Journals A circularly polarized slot antenna for high gain applications In this article we explore a significant innovation in the field of antenna design focusing on sub6 GHz frequencies for 5G with an emphasis on the n77 n78 and n79 bands as well as the LTE bands 22424346 Our unique antenna design incorporates a strategic arrangement of slots that form a positive pattern resembling a symbol within a circle on a substrate FR4 with dimensions of 24 GHz Circular Cavitybacked Slot Antenna Based on A number of printed antennas displaying circular polarization CP properties have been reported in the published literature In particular the coplanar waveguide CPW fed slot antenna is preferred for its cost efficient uniplanar structure and wider bandwidth The uniplanar structure also reduces misalignment errors to a large extent 2 In Dual Band Reconfigurable Compact Circular Slot Antenna A new design of a circularly polarized squarering slot antenna is proposed The circular polarization is achieved by a series microstriplinefeed configuration coupling to two orthogonal sides of the squarering slot A parametric study is conducted using a commercial simulation software based on the method of moments and the design procedure is established The required groundplane size The proposed antenna demonstrates a reflection coefficient covering the frequency range from 73 GHz to 85 GHz The antenna is circularly polarized with a 3dB axial ratio bandwidth ranging from 788 GHz to 858 GHz The antenna array exhibits a gain variation between 11 dBi and 1251 dBi Moreover the proposed design achieves an efficiency A design of circular integrated rectangular slot CIRS Circular patch antennas with inset feed and slot configurations have been developed to enhance bandwidth for Kuband applications By integrating an inset feed the impedance matching of the circular patch antenna is significantly improved while the slot introduces additional resonances effectively broadening the antennas bandwidth A comprehensive parametric analysis of the design Circular Slot And Antenna And Pier Image Results Circularly Polarized Circular Slot Antenna Array Using Design of Broadband Circularly Polarized Square Slot Antenna volume semantik adalah PIER Journals The proposed antenna is excited using a circular ring resonator fabricated on one side of the dielectric substrate with a circular slot etched on the ground plane To realise a single or dualband notch characteristic the antenna includes a semicircular parasitic strip located above the circular ring and a Tshaped stub is located near the Dual Band Reconfigurable Compact Circular Slot Antenna for WiMAX and XBand Applications1 B T P Madhav1 M Monika1 B M Siva Kumar1 and B Prudhvinadh1 1K L University Vaddeswaram India ORCID 0000000268936978 email btpmadhavkluniversityin Received February 14 2018 Revised October 10 2018 Accepted September 16 2019 Purushothaman Janaki Ramal Syed Nawab Syed Althaf Kannan Vishnulakshmi Palaniselvan Sundaravadivel and Rajesh Kumar Dhandap A Compact WideBand Circular Slot QuadPort MIMO Antenna for 5G Wireless Applications Progress In Electromagnetics Research Letters Vol 120 6571 2024 PIER C PIER Journals jpierorg A novel lowprofile circular cavitybacked slot antenna based on corrugated substrate integrated waveguide CSIW operating at 24 GHz is introduced in this paper By replacing the conventional metallic viaholes in a substrate integrated waveguide SIW with quarterwave openstubs CSIW not only preserves some advantages of the SIW technology but also makes it easier to fabricate and 28 Mohammadi Saeid Javad Nourinia Changiz Ghobadi Javad Pourahmadazar and Majid Shokri Compact broadband circularly polarized slot antenna using two linked elliptical slots for Cband applications IEEE Antennas and Wireless Propagation Letters Vol 12 10941097 2013 29 Bandwidth Enhancement in Circular Patch Antenna using Inset CPWfed Circular Slot Antenna for Ultra Wide Band Applications In this paper a compact triangularshaped multiband Antenna is proposed for linear as well as circular polarization The proposed Antenna is wellsuitable for WiMax Cband and Xband applications 24 GHz is very well suitable for RFID applications The antenna is excited with a feed of variable width at one corner of the main patch This paper analyzes the impact of circular with rectangular fractal slots in the patch antenna designs basedon the resonant frequency return loss impedance bandwidth and gain factors Here the microstrip patch antenna has been used due to their benefits of compact size cost efficiency thin profile and simplicity An optimized antenna design helps to improve the bandwidth suitable for ease of construction 37 The coplanar waveguide fed slot antenna in recent times acknowledged much attention due to its advantages such as lower profile wide bandwidth easy fabrication In planar slot antenna two parameters affect the impedance bandwidth of the antenna the slot width and the feed structure Amongst all the designs circular microstrip antenna using the 1st order fractal Uslot design yields optimum result It offers axial ratio bandwidth of 60 MHz 214 with a broadside radiation pattern and peak gain of 55 dBi on a substrate of 002λ g thickness and patch area 144λ g volume PIER Journals proposed circular slot antenna element is printed on a commercial cheap FR4 substrate with relative permittivity of 44 The righthand Lshaped strip with a taper end is fabricated directly opposite the circular slot Note that the 1 mm length of the strip along the yaxis measured from circular slot center etched in the ground rina 4d plane while W s
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