A compact broadband microstrip patch antenna with defective ground structure for C-Band applications

Rawat, Sanyog; Sharma, Kamalesh Kumar

doi:10.2478/s13531-013-0162-1

Cited by 25 publications

(17 citation statements)

References 5 publications

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“…Inserting an elliptical slot in a circular patch, the antenna resonates in five modes. The first three resonant frequencies 4.5 GHz, 6.3 GHz, 7.5 GHz cover up C-band, and the last two frequencies 9.3 GHz, 10.8 GHz cover up X-band operation entirely, compared to previously designed antennas [29][30][31][32][33]. The proposed design achieves 95% impedance bandwidth in UWB frequency range 4.10-11.5 GHz.…”

Section: Introductionmentioning

confidence: 71%

“…The measured results show good agreement with equivalent circuit model and CST simulation. The radiation pattern, impedance bandwidth, directivity and flat gain characteristics of the antenna have also been compared with the earlier suggested similar research work [21][22][23][24][25][26][27][28][29][30][31][32][33]. The radiation patterns of the proposed antenna at different frequencies are shown in Fig.…”

Section: Resultsmentioning

confidence: 94%

“…17. In Table 4, a comparative study of performance analysis of the designed antenna is given with recently suggested antennas [21,[29][30][31][32][33].…”

Section: Resultsmentioning

confidence: 99%

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DESIGN ANALYSIS AND MODELING OF DIRECTIONAL UWB ANTENNA WITH ELLIPTICAL SLOTTED GROUND STRUCTURE FOR APPLICATIONS IN C- & X-BANDS

Meena¹,

Kumar²,

Parmar³

et al. 2016

PIER C

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Abstract-A modified technique to design directional ultra-wideband (UWB) antenna with slotted ground structure approach on the ground plane has been presented for applications in C-and X-bands. Initially, elliptical slot is inserted into ground and thereafter, the axis of ellipse is rotated 45 degrees in direction of the substrate. Minor axis of the ellipse is optimized to locate it symmetrically around the circular patch in order to obtain the full C-and X-band operations and also to enhance directivity. Thereafter, for further improvement in the directivity as well as gain, an elliptical slot in circular patch has also been introduced. The impedance bandwidth approximates about 95% covering the frequency ranging from 4.18-11.50 GHz. The return losses (S 11 ) are −38 dB and −43 dB through simulation, which are −24 dB and −32 dB by measurement at 6.3 GHz, 9.3 GHz resonant frequencies, respectively. Simulated gain and half power beam width (HPBW) are 2.5-8.4 dB and 49-22 degrees in 4.18-11.50 GHz band, respectively. Gain and half power beam width (HPBW) of the proposed antenna improves by 1-2 dB and 5-10 degrees, respectively compared with previously designed antennas. Simulation of the antenna has been carried out on Computer Simulation Technology (CST) software on an FR-4 substrate having dielectric constant 4.3 of thickness 1.6 mm. The measured results show good agreement with equivalent circuit model and CST simulation.

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Section: Introductionmentioning

confidence: 71%

Section: Resultsmentioning

confidence: 94%

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DESIGN ANALYSIS AND MODELING OF DIRECTIONAL UWB ANTENNA WITH ELLIPTICAL SLOTTED GROUND STRUCTURE FOR APPLICATIONS IN C- & X-BANDS

Meena¹,

Kumar²,

Parmar³

et al. 2016

PIER C

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“…In addition, various antennas with defected ground plane are previously reported [13][14][15][16] to involve in complex calculation and sophisticated design structure as compared to the proposed antenna. A detailed comparison in terms of parameters, such as antenna size, total area occupied by the antenna, bandwidth, gain and its frequency of operation, has been summarized in Table 4.…”

Section: Discussion Of Resultsmentioning

confidence: 99%

“…The dumbbell-shaped DGS antenna incorporated with CSRR for dual-bandgap characteristics and microstrip-line-fed antenna with defected ground structure are used for Ku-band application which gives a better impedance bandwidth and gain [11,12]. A 32 × 32 mm 2 size Z-shaped metal strip removed from the ground plane to enhance the bandwidth upto 12.2% [13], compact broadband microstrip antenna with defected ground structure was proposed in [14]. A dual ultrawide band slotted antenna with gain 5.54 dBi and an inverted S-shaped compact antenna [15,16] were reported for the C-and X-band applications and compared with the proposed antenna in Table 4.…”

Section: Introductionmentioning

confidence: 99%

A Novel Wide Band Microstrip-Line-Fed Antenna With Defected Ground for Cp Operation

Ansari¹,

Verma²,

Verma³

et al. 2015

PIER C

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Abstract-A novel wide band microstrip line-fed antenna with defected ground structure is proposed for circularly polarized characteristics. This antenna is suitable for C-band and partially X-band operation. Antenna1 structure consists of microstrip-line-feed, and the square-shaped slot defect is incorporated in the ground plane. Furthermore, rectangular and circular patches are embedded in the square-shaped slot that improves the performance of the radiating Antenna2 and Antenna3 structures, respectively. The proposed Antenna3 is compact in size and shows a good quality of polarization at resonant frequency band. Antenna3 shows the measured impedance bandwidth of 40.72% (6.45-9.75 GHz) and also shows the variations of 3-dB axial ratio bandwidth at the 6.806 GHz and 9.13 GHz frequencies with the simulated results, respectively. The return loss, axial ratio, gain, efficiency and radiation pattern of the proposed Antenna3 remain consistent for resonant frequency band. The antenna is practically fabricated and simulated. Measured result shows a good agreement with simulated and theoretical ones.

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Bandwidth enhancement of compact and wideband square microstrip patch antenna for WLAN/WiMAX applications in C‐band

Verma

2023

Int J Numerical Modelling

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This paper presents a compact and wideband square microstrip patch antenna using low cost and easy available FR‐4 substrate of ground size 30 mm × 30 mm (0.51 × 0.51 at lowest resonant frequency 5.07 GHz). The radiating patch of antenna is designed by embedding three T‐shape notches of same dimension formed by two rectangular notches of size 6 mm × 5 mm and 3 mm × 2 mm. The radiating patch is optimized by parametric variation of notches and feed line. The wideband fractional bandwidth (S11 < −10 dB) of 47.2% (2810 MHz) is achieved from 4.55 to 7.36 GHz with good return loss of −47.27 dB at 5.07 GHz for an optimized dimension of notches and feed line. However, the measured fractional bandwidth of 43.9% (2340 MHz) is achieved from 4.16 to 6.50 GHz with return loss of −37.34 dB at 5.14 GHz. A stable simulated gain of 4.69 to 5.93 dBi and measured gain of 4.4 to 5.9 dBi is observed in complete resonating band. The antenna is excited by line feed of 50 Ω and simulated by IE3D simulation tool. The entire resonating band 4.55–7.36 GHz is suitable for different applications in C‐band (4–8 GHz).

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A compact broadband microstrip patch antenna with defective ground structure for C-Band applications

Cited by 25 publications

References 5 publications

DESIGN ANALYSIS AND MODELING OF DIRECTIONAL UWB ANTENNA WITH ELLIPTICAL SLOTTED GROUND STRUCTURE FOR APPLICATIONS IN C- & X-BANDS

DESIGN ANALYSIS AND MODELING OF DIRECTIONAL UWB ANTENNA WITH ELLIPTICAL SLOTTED GROUND STRUCTURE FOR APPLICATIONS IN C- & X-BANDS

A Novel Wide Band Microstrip-Line-Fed Antenna With Defected Ground for Cp Operation

Bandwidth enhancement of compact and wideband square microstrip patch antenna for WLAN/WiMAX applications in C‐band

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