Microstrip frequency selective surface for use in horn Filtenna

Micro & Optical Tech Letters

Mahoutı

2018

Self Cite

In this work, performance enhancement of a microstrip patch antenna working at ISM band (2.4 GHz) is presented using modified cross shaped Frequency Selective Surface (FSS) constructed on Substrate Integrated Waveguide (SIW). Design optimizations and simulations of both the antennas and FSS are carried out on low‐cost FR4 substrate (with ɛr = 4.4, h = 1.58 mm, and tan δ = 0.0035) in the 3D CST MSW environment. In addition, to exhibit merit of using SIW structure, the traditional FSS in the same configuration is also applied and performances of the antennas used FSSs with and without SIW are also simulated and compared in the 3D CST MSW environment. Finally, the proposed model is confirmed by measurements agreed with the theoretical results to have enhanced gain and beam width at the 2.4 GHz bandwidth alongside improvement in the return loss.

Section: Design Considerationsmentioning

confidence: 99%

Performance enhancement of a microstrip patch antenna using substrate integrated waveguide frequency selective surface for ISM band applications

Güneş

Micro & Optical Tech Letters

Mahoutı

2018

Self Cite

“…FSS designs divided into two main varieties of passive and active. Passive FSS designs, show a single filter characteristic (band pass, band stop, low pass or high pass), 29 while active FSS designs are configured for more than one state. They show ON‐OFF switching response according to the bias characteristics of the active component on the unit cell or array which gave them reconfigurable characteristics.…”

Section: Introductionmentioning

confidence: 99%

Realization of reconfigurable filtering horn antennas using active frequency selective surfaces for GSM and LTE signal filtering

Kasar

Int J RF Microw Comput Aided Eng

2020

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Herein, it is aimed to design an Active Frequency Selective Surface (AFSS) based high performance reconfigurable filtering antenna (Filtenna). The proposed AFSS unit element is consist of a single PIN diode with a simple microstrip patch design which performance characteristics are varies with the state of the diodes. The proposed unit elements have been used to form an array that is placed at the aperture of a double ridge horn antenna. With the variation in state of diodes, the antenna acts as a Filtenna module to filtering the incoming electromagnetic waves in frequency band of 1.8 to 2.8 GHz. From the experimental results, it is shown that the proposed Filtenna achieves a signal attenuation of 7.3 dBi at 2.1 GHz.

“…This is because it is compact and easier to integrate to designs. It is increasingly being used to realize planar circuits and antennas …”

Section: Introductionmentioning

confidence: 99%

“…It is increasingly being used to realize planar circuits and antennas. [1][2][3][4][5][6][7][8][9][10][11][12][13] This study puts forward the improvement that has come about in the gain and beamwidth of a microstrip patch antenna at 2.4GHz ISM band by employing DLFSS. Separate design optimizations and realizations of the microstrip…”

mentioning

confidence: 99%

Performance enhancement of a microstrip patch antenna using dual‐layer frequency‐selective surface for ISM band applications

Micro & Optical Tech Letters

2018

Self Cite

A microstrip patch antenna working at 2.4 GHz at ISM band is presented in this work by employing an altered anchor‐shaped dual‐layer frequency‐selective surface (DLFSS) on a microstrip substrate. Both the traditional method and the proposed one are shown in order to show the advantage of employing this DLFSS structure. In the new technique, simulations and design optimizations of the antennas and FSS structure are undertaken on a low‐cost FR4 substrate with εr = 4.4, h = 1.58 mm and tanδ = 0.0035 in the given 3D CST MSW setting. The traditional FSS technique of the same configuration is also used in the same setting and the outcome of the antenna performance with and without DLFSS is replicated and compared. The results show that the measurements given by the suggested new model are in synchronization with the theoretical results and prove that they have greater gain and beam width at 2.4 GHz bandwidth; they also show improved return loss.