Shared Aperture Microstrip Patch Antenna Array for L and S-Bands

Dhiman, Jonny; Sharma, Achyut; Khah, and Sunil

doi:10.2528/pierl19052905

Cited by 5 publications

(4 citation statements)

References 19 publications

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“…A single-layer antenna array is an element array in X and Ku bands. Compared to the SAAs in [5][6][7][8][9][10][11], [13], and [16][17][18][19][20][21][22], the suggested SAA has an FR of 1.426, better gains, and better band isolation. The dual-band prototype has a compact, multi-layer, planar SAA architect.…”

Section: B Ku-band 5-element Designmentioning

confidence: 99%

“…The combination of patches and feed layers results in an exceedingly small antenna that is excellent for low-weight applications such as spaceborne SAR [16]. In [17], L and S bands, a dual-mode shared apert antenna consisting of two planer arrays of ring antennas is designed. The antennas are isolated and fed separately from one another.…”

Section: Introduction Sar Technology Bymentioning

confidence: 99%

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An X/Ku-Band Series Feed Center Fed Shared Aperture Array Antenna for AIR-Borne Synthetic Aperture Radar Applications

Kati,

Kothapudi

2023

Mikrotalasna revija = Microwave Review

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A 5-element Shared Aperture Antenna Array for X/Ku-band Airborne synthetic aperture radar (AIR-SAR) applications is presented in this research work. As far as the authors are aware, few shared aperture antennas (SAA) exist that cover both X/Ku-band frequencies. The presented research is focused on designing a dual-band single linear-polarized (DBSP) series-fed center-fed (SFCF) X/Ku-band. The implementation of SAA is with the perception of an SFCF 5element group as one group with three patches that are arranged orthogonal to each other to form two sets (3-patches) to realize a series fed array with coaxial probe feeding method in X/Kubands. The X-band (9.3 GHz) is best suited for soil moisture estimation in agricultural areas; the Ku-band (13.265 GHz): is mainly for snow and cold regions and disaster monitoring. The SAA prototype is fabricated and measured with S-parameters and radiation pattern characteristics to verify the antenna design concept, including gain measurements. The antenna exhibits -10 dB impedance bandwidth (BW) (9.1919-9.4674 GHz) (276 MHz with 2.96% BW) in X-band and (13.054-13.513 GHz) (459 MHz with 3.46% BW) in Ku-band. More than 25 dB of isolation has been measured between the ports and two separate bands in the same polarization. The antenna's X-band gain is 12 dBi at port-1 and its Ku-band gain is 11.3 dBi at port-2, according to the measurements. X-band side-lobe level (SLL) is better than -16.2 dB at port-1 and Ku-band SLL is better than -14.1 dB at port-2, as measured by SLL. The X/Ku-DBSP SAA has total dimensions of 120 × 60 × 1.6 mm 3 and for the presented design, measured and simulated results are in good agreement.

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Section: B Ku-band 5-element Designmentioning

confidence: 99%

Section: Introduction Sar Technology Bymentioning

confidence: 99%

An X/Ku-Band Series Feed Center Fed Shared Aperture Array Antenna for AIR-Borne Synthetic Aperture Radar Applications

Kati,

Kothapudi

2023

Mikrotalasna revija = Microwave Review

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“…Another technique is to design a dual-band array comprising interleaved printed folded dipoles, which are resonant at octave-separated frequency bands (1 and 2 GHz), with individual feeds for each element [3]. Shared aperture concept has been used to design dual band antenna arrays in L and S bands [4]. However, the reported shared aperture antenna designs [5][6][7][8] are mostly complicated and bulky which makes their fabrication expensive and challenging.…”

Section: Introductionmentioning

confidence: 99%

A metasurface integrated shared aperture antenna for Sub-6 GHz applications

2023

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A shared aperture antenna resonating at two sub-6 GHz frequencies with frequency ratio 1.4 is proposed. A hybrid metasurface constituting two different types of band-stop FSS unit cells resonating at the same frequencies as that of the antenna is placed below it for simultaneous 4 dB gain enhancement of each antenna element at the resonant frequencies. Isolation of more than 35 dB is obtained in both the frequency bands. Equivalent circuit models of the bandstop FSSs have been proposed to explain their physical operation. The two antenna elements have been fed differently for minimising the isolation between them. The first antenna has a CPW feed line. The second antenna has a microstrip feed line. Compared to other existing works, the proposed design is compact and low profile having an aperture size of 50 mm by 52 mm, which makes it suitable for applications of dual sub-6 5G frequency bands 3-4 GHz and 4.9-5.4 GHz. A prototype of the proposed shared aperture antenna integrated with the hybrid metasurface has been fabricated and measured as a proof of concept. Measured results are in close agreement with the full-wave simulated results.

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“…Angular ring patch antenna was first reported in year 1985, by IJ Bahal for biomedical application. Thereafter, only few research have been reported on these antennas such as, theory and experiment on the annular-ring microstrip antenna, shared aperture microstrip patch antenna array for L and S-Bands, analysis of a gap-coupled stacked annular-ring microstrip antenna, compact stacked circularly polarized annular-ring microstrip antenna for GPS applications, annular-ring microstrip patch antenna with finite ground plane for ultra-wideband applications, compact concentric annular-ring patch antenna for triple-frequency operation, comparison of several novel annular-ring microstrip patch antennas for circular polarization, analysis of two-concentric annular-ring microstrip antenna, and broadband circularly polarized annular-ring microstrip antenna [1][2][3][4][5][6][7][8][9][10]. All above reported papers has some limitations such as complicated geometry, lacks theoretical analysis for defected ground with microstrip line feed, circuit diagram at Radio frequency were not proposed for designed antenna and theoretical, simulated and experimental results were not compared.…”

Section: Introductionmentioning

confidence: 99%

Ultra Wide Band Antenna with Defected Ground Plane and Microstrip Line Fed for Wi-Fi/Wi-Max/DCS/5G/Satellite Communications

Singh¹,

Shet²,

Prasad³

2020

Modern Printed-Circuit Antennas

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In this chapter, ultra wide band angular ring antenna has been proposed for wireless applications. It has been observed that antenna resonate from 2.9 to 13.1 GHz which has 10.2 GHz bandwidth. Further, it is observed that antenna has nearly omni-directional radiation pattern for E and H-plane at 3.5, 5.8, and 8.5 GHz. The theoretical analysis of the proposed has been done using circuit theory analysis. It was also found using simulation that antenna has good input and output response of 0.2 ns. Proposed antenna measured, simulated, and theoretical results matches for antenna characteristics, i.e., reflection coefficient and radiation pattern. Bandwidth of antenna lies between 2.9 and 13.1 GHz, so this antenna is suitable for Wi-Fi, Wi-Max, digital communication system (DCS), satellite communication, and 5G applications.

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Shared Aperture Microstrip Patch Antenna Array for L and S-Bands

Cited by 5 publications

References 19 publications

An X/Ku-Band Series Feed Center Fed Shared Aperture Array Antenna for AIR-Borne Synthetic Aperture Radar Applications

An X/Ku-Band Series Feed Center Fed Shared Aperture Array Antenna for AIR-Borne Synthetic Aperture Radar Applications

A metasurface integrated shared aperture antenna for Sub-6 GHz applications

Ultra Wide Band Antenna with Defected Ground Plane and Microstrip Line Fed for Wi-Fi/Wi-Max/DCS/5G/Satellite Communications

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