Compact Circularly Polarized Asymmetrical Fractal Boundary Microstrip Antenna for Wireless Applications

Reddy, V. V.; Sarma, N. V. S. N.

doi:10.1109/lawp.2013.2296951

Cited by 94 publications

(52 citation statements)

References 15 publications

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“…All the proposed four antennas possess wideband CP radiation characteristics with more than 5 dBic gain. Other antennas [19][20][21][22] The small deviations in practical results when compared to simulation results are attributed to fabrication tolerances, and are not considered in the process of simulation.…”

Section: Resultsmentioning

confidence: 99%

“…Various configurations, including the asymmetric Cshaped slot [17], asymmetric nature of complimentary slit ring resonator with circular slot [18], prefractal asymmetric boundaries [19], combination of parasitic strip and symmetrical corner V-shaped slits [20], integrated unequal circular elements at the corners of square patch [21], and cross-slotcoupled [22] patch antennas have been presented in the literature for CP radiation. Wideband CP antennas with significant gain are an important requirement in modern transceiver systems used for radar and navigational purposes.…”

Section: Introductionmentioning

confidence: 99%

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Asymmetric and symmetric modified bow-tie slotted circular patch antennas for circular polarization

Darimireddy¹,

Reddy

Prasad

2018

ETRI Journal

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Modern communication systems employ wideband antennas with circular polarization (CP) radiation. In this work, asymmetric modified bow‐tie (ABT) and symmetric modified bow‐tie (SBT) slotted circularly polarized single‐point probe‐fed circular patch antennas with dimensions of 40 mm × 40 mm for wideband applications are proposed. A 10 dB RL bandwidth of 350 MHz with CP, 3 dB axial ratio (AR) bandwidth of 100 MHz, peak gain of 4.9 dBic, and 10 dB RL bandwidth of 530 MHz with CP, 3 dB AR bandwidth of 140 MHz, peak gain of 5 dBic are obtained for ABT and SBT slotted circular patch antennas, respectively. The proposed SBT slotted patch is scaled up and down to 50 mm × 50 mm and 30 mm × 30 mm, respectively. The proposed scaled‐up version offers 10 dB RL and 3 dB AR bandwidths of 340 MHz and 80 MHz, with a peak gain of 5 dBic. The scaled‐down version offers 10 dB RL and 3 dB AR bandwidths of 710 MHz and 180 MHz, with a peak gain of 5.25 dBic. These prototypes are suitable to work in IEEE 802.11a WLAN, ISM, and IEEE 802.11ac applications. The measured and simulated results are then discussed and compared.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Asymmetric and symmetric modified bow-tie slotted circular patch antennas for circular polarization

Darimireddy¹,

Reddy

Prasad

2018

ETRI Journal

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“…The comparative studies of the centre frequency, impedance bandwidth, axial ratio bandwidth and gain between the proposed antenna and some existing small‐size CP antennas are summarized in Table . The proposed antenna possesses wider impedance bandwidth, wider axial ratio bandwidth and higher gain compared to many other existing compact patch antennas.…”

Section: Resultsmentioning

confidence: 99%

A novel hexagonal wideband circularly polarized stacked patch microstrip antenna

Mondal¹,

Samanta²,

Ghatak

et al. 2015

Micro & Optical Tech Letters

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This article proposes a novel, simple, microstrip‐fed, circularly polarized, stacked, diagonal‐slotted, wideband hexagonal microstrip patch antenna for Intelligent Transport System (ITS) applications. It has been found to operate in the Global Positioning Systems frequency L1 (GPS 1.575 GHz). The fabricated antenna shows an impedance bandwidth of 171 MHz which is around 11% (1.521–1.692 GHz) with 3 dB axial‐ratio‐bandwidth (ARBW) of 80 MHz which is around 5% (1.54–1.62 GHz) and for the entire 3 dB ARBW the gain achieved is over 6.5 dBi. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2548–2554, 2015

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“…A microstrip‐line‐fed microstrip slot antenna has also shown wide‐band and UWB performance . Some of them reported the UWB antenna with CP but they have a narrow 3‐dB axial ratio BW . The comparative lists for the performance of some similar antennas and the proposed antenna are shown in Table .…”

Section: Introductionmentioning

confidence: 99%

“…13,14 Some of them reported the UWB antenna with CP but they have a narrow 3-dB axial ratio BW. [15][16][17][18][19][20][21][22][23][24][25][26] The comparative lists for the performance of some similar antennas and the proposed antenna are shown in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Circularly polarized hexagonal ring microstrip patch antenna with asymmetrical feed and DGS

Maurya

Kanaujia²,

Gautam³

et al. 2019

Micro & Optical Tech Letters

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A novel circularly polarized hexagonal ring microstrip patch antenna with asymmetrical feed is proposed for S, C, and X‐band applications. A semi‐arc‐shaped slot is integrated into the ground plane, and the hexagonal ring is tilted by an angle of 25° with respect to the microstrip‐line feed (asymmetric), which creates a circularly polarized UWB. The simulation of the proposed antenna is carried out using Ansoft HFSS v.13 and the measurement is done with an N5230A vector network analyzer. The simulated and the measured results of our proposed antenna are in good agreement. The successful implementation of the asymmetrical feed shows a broader impedance bandwidth of 134% (B.W = 9.55 GHz) from 2.34 to 11.89 GHz at 7.12 GHz of the center frequency. The 3‐dB axial ratio B.W is 2.8% (7.1‐7.3 GHz) and 21.8% (9.8‐12.2 GHz) in the UWB range. The average gain of the proposed antenna is 4.15 dBi. Good RHCP waves are also found in the x‐z and y‐z planes. The proposed antenna can be effectively used in S, C, and X‐band applications.

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Compact Circularly Polarized Asymmetrical Fractal Boundary Microstrip Antenna for Wireless Applications

Cited by 94 publications

References 15 publications

Asymmetric and symmetric modified bow-tie slotted circular patch antennas for circular polarization

Asymmetric and symmetric modified bow-tie slotted circular patch antennas for circular polarization

A novel hexagonal wideband circularly polarized stacked patch microstrip antenna

Circularly polarized hexagonal ring microstrip patch antenna with asymmetrical feed and DGS

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