Design of a linear array of fractal antennas with high directivity and low cross‐polarization for dedicated short range communication application

Patanvariya, Deven G.; Chatterjee, Anirban; Kola, Kalyan Sundar; Naik, Sanmitra Bharat

doi:10.1002/mmce.22083

Cited by 11 publications

(13 citation statements)

References 20 publications

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“…The circuit model of the antenna is derived to study the operating frequency, S

_{11}

, bandwidth, and impedance matching between source and load. It also helps in designing n‐number of the array to characterize the performance of the array before fabrication 6 . The equivalent circuit model of the proposed CP antennas is illustrated in Figure 4.…”

Section: Single Element and Circuit Modelmentioning

confidence: 99%

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High‐directive monopulse microstrip antenna array for DSRC‐band application

Patanvariya

Chatterjee

2021

Int J Communication

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Summary In this paper, the authors presented a new technique to generate difference (Δ)‐pattern in microstrip patch antenna array for monopulse applications. In array, the truncated corner single elements are left‐handed and right‐handed circularly polarized. The Δ‐pattern is generated by placing the left‐ and right‐polarized single elements in same direction along y‐axis. The circuit model analysis of a single element and array is presented to analyze the antenna's performance. In order to achieve a lower sidelobe level and stable radiation pattern, a uniform power divider has been designed. Finally, the proposed left‐ and right‐polarized element and array are fabricated and measured. The proposed circularly polarized (CP) elements and array resonates at 5.90 GHz. The array provides null depth of more than −42 dB at θ=0∘ direction in different ϕ cuts. The proposed array has a linear gain of 8.71 dBi and radiation efficiency of 77.25%. Furthermore, the simulated and measured results are well matched, which shows the effectiveness of the proposed way to generate the difference pattern for monopulse application.

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“…The circuit model of the antenna is derived to study the operating frequency, S

_{11}

Section: Single Element and Circuit Modelmentioning

confidence: 99%

“…Wilkinson power divider is used to design an array feed network because it has a low level of loss and a high level of isolation between output ports. 6 Wang et al 7 presented a single layer monopulse microstrip patch antenna array with branch-line couplers for Ku-band. The designed array has a low radiation efficiency.…”

Section: Introductionmentioning

confidence: 99%

High‐directive monopulse microstrip antenna array for DSRC‐band application

Patanvariya

Chatterjee

2021

Int J Communication

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“…5 The conventional patch antenna suffers from low gain, which can be improved by constructing an antenna array. 6 Furthermore, antenna array topology helps to shape the radiation pattern in a particular direction. To design the array feed network, the Wilkinson power divider has been used.…”

Section: Introductionmentioning

confidence: 99%

“…To design the array feed network, the Wilkinson power divider has been used. 6 Shaikh et al 7 presented two patch antenna array with 2-port hybrid rat-race ring coupler to generate the sum and difference pattern for X-band applications. The 8-port substrate integrated waveguide (SIW) slot antenna to generate the difference pattern for Kaband application is presented by Liu et al 8 The p-i-n switch based feed network is used for a different mode of operation in a multi-port network and it is reported by Peng et al 9 Yu et al 10 presented a single aperture monopulse feed integrated with a 180 ∘ directional coupler.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, antenna array topology helps to shape the radiation pattern in a particular direction. To design the array feed network, the Wilkinson power divider has been used 6 . Shaikh et al 7 presented two patch antenna array with 2‐port hybrid rat‐race ring coupler to generate the sum and difference pattern for X‐band applications.…”

Section: Introductionmentioning

confidence: 99%

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Generation of difference pattern from a linear microstrip patch array for the monopulse radar application

Patanvariya

Chatterjee

2020

Int J RF Microw Comput Aided Eng

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This paper presents a new technique to generate difference pattern from a circularly polarized (CP) microstrip array antenna for monopulse radar application. The individual truncated corner radiators of the array are left-handed CP (LHCP). The difference pattern is generated by placing together the left and right side proposed single elements in opposite direction to each other along the y-axis with an inter-element spacing of 3λ/4. In order to achieve a stable radiation pattern with low sidelobe level over a resonating band, a uniform feed network is designed for the array. Finally, the proposed single element and the 4 × 1 array are designed, fabricated, and measured. The left-polarized element of the array structure, resonates at 5.90 GHz with good circular polarization properties. The array prototype resonates at 5.904 GHz with 3.60% impedance bandwidth. The array gives null depth greater than −30 dB at θ = 0 ∘ in different ϕ cuts. The proposed left-CP array has a gain of 9.48 dBic and a radiation efficiency of 77.50%. Moreover, the measured results matched well with the simulated results, which proves the effectiveness of the proposed approach for practical application.

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A low‐RCS dual‐bandstop golden ratio‐based fractal‐FSS for defense applications

Solunke,

Kothari

2024

Int J Communication

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A single‐layer, dual‐band, low‐profile golden‐frequency selective surface (G‐FSS) for electromagnetic wave shielding in defense applications is presented in this study. The unit cells, based on a golden ratio fractal design and incorporating stub‐shaped conducting strips, have been carefully designed and fabricated. The designed G‐FSS structure was built on an FR‐4 substrate, and its performance was tested in an anechoic chamber. The G‐FSS has two stop bands at 5.68 and 8.75 GHz, which shield devices operating in the C‐band and X‐band frequency ranges. The unit cell size of the proposed G‐FSS considering is the wavelength of the first resonant frequency is . The dual‐band frequency selective surface (FSS) is designed symmetrically, which results in a consistent stop‐band response for both transverse electric (TE) and transverse magnetic (TM) modes, and it also demonstrates high stability across different angles. Also, a characteristics modal analysis with conformal and radar cross‐section (RCS) analysis was performed to validate the structure. The simulation results closely match the experimental findings, indicating strong consistency between the two data sets.

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Design of a linear array of fractal antennas with high directivity and low cross‐polarization for dedicated short range communication application

Cited by 11 publications

References 20 publications

High‐directive monopulse microstrip antenna array for DSRC‐band application

High‐directive monopulse microstrip antenna array for DSRC‐band application

Generation of difference pattern from a linear microstrip patch array for the monopulse radar application

A low‐RCS dual‐bandstop golden ratio‐based fractal‐FSS for defense applications

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