Substrate Integrated Waveguide Cavity-Backed Dumbbell-Shaped Slot Antenna for Dual-Frequency Applications

Mukherjee, Soumava; Biswas, Animesh; Srivastava, Kumar Vaibhav

doi:10.1109/lawp.2014.2384018

Cited by 90 publications

(40 citation statements)

References 16 publications

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“…However, unlike conventional SIW cavity backed slot antenna, the proposed slot is placed asymmetrically along the right half of the cavity. The proposed dumbbell slot is modified by introducing a circular patch and a pair of connecting strips separated by a slot arc of length of φ = 135° to introduce tuning capability of the proposed antenna . The SIW cavity is fed by a 50 Ω grounded coplanar waveguide line (GCPW) followed by a 50 Ω microstrip line of same width and it is extended inside the cavity up to a length of “ l in ” for proper excitation of desired modes.…”

Section: Design Of the Proposed Antennamentioning

confidence: 99%

“…By varying the inner circular patch diameter ( d_dumb1 ) of the proposed modified dumbbell shaped slot, the frequency ratio of the resonant frequencies of the proposed antenna can be tuned within a range of f 2 / f 1 = 1.34‐1.37 and f 3 / f 1 = 1.84‐1.98 while keeping all other cavity dimensions same. Also by changing the position of the connecting strips denoted by “ θ” and the length of the slot arc denoted by “ φ” as shown in Figure , the frequency ratio of the antenna can also be tuned ( f 2 / f 1 = 1.27‐1.36 and f 3 / f 1 = 1.92‐2.01) which adds additional flexibility to the design …”

Section: Design Of the Proposed Antennamentioning

confidence: 99%

“…The proposed dumbbell slot is modified by introducing a circular patch and a pair of connecting strips separated by a slot arc of length of u 5 1358 to introduce tuning capability of the proposed antenna. 15 The SIW cavity is fed by a 50 X grounded coplanar waveguide line (GCPW) followed by a 50 X microstrip line of same width and it is extended inside the cavity up to a length of "l in " for proper excitation of desired modes. The optimum dimensions of the proposed design are mentioned in Figure 1.…”

Section: Esign Of the Proposed Anten Namentioning

confidence: 99%

“…[12][13][14] In Ref. 15, hybrid mode is excited using dumbbell shaped slot to get dual frequency response in a compact SIW cavity. Design of dual band and dual polarized dual band planar slot antenna using SIW cavity hybrid modes are presented in Ref.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Computer aided equivalent circuit model of SIW cavity backed triple band slot antenna

Mukherjee

Biswas

2016

Int. J. RF Microw. Comput. Aided Eng.

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In this article, a study of planar triple band unidirectional Substrate Integrated Waveguide (SIW) cavity backed slot antenna using equivalent circuit model is presented. The proposed antenna uses a modified dumbbell shaped slot of much larger length placed in a planar SIW cavity to excite three closely spaced SIW cavity hybrid modes which help the slot to radiate into free space. The design is analyzed with the help of equivalent circuit model to predict the resonant frequencies of the design and also to explain the excitation mechanism of the proposed slot antenna. The proposed circuit model is validated by comparing its performance with the simulation model for a wide range of parametric variation. The relationship between modification in design dimension with the variation of coupling between feed line and cavity modes is studied which gives a design guideline for the proposed antenna. The fabricated prototype of the antenna resonates at 7.39, 9.43, and 14.79 GHz with a gain of 3.2, 4.9, 4.7 dBi and front‐to‐back ratio (FTBR) of 10 dB, respectively, at three resonant frequencies which makes it suitable for C (4–8 GHz), X (8–12 GHz), and Ku (12–18 GHz) band applications.

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Section: Design Of the Proposed Antennamentioning

confidence: 99%

Section: Design Of the Proposed Antennamentioning

confidence: 99%

Section: Esign Of the Proposed Anten Namentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Computer aided equivalent circuit model of SIW cavity backed triple band slot antenna

Mukherjee

Biswas

2016

Int. J. RF Microw. Comput. Aided Eng.

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“…SIW cavity backed bow-tie slot was proposed to improve the bandwidth of the antenna up to 9.4% [17]. In [18,19] hybrid modes are excited to produce dualband and broadband performance of the planar SIW cavitybacked slot antenna…”

Section: Introductionmentioning

confidence: 99%

Design of Hilbert Slot Substrate Integrated Waveguide (SIW) Antenna

Amer¹,

Mahmood²

2018

IJCA

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In this paper, a new design of miniature, dual-band Hilbert SIW slot antenna is introduced. The antenna is printed on a h=1mm thick dielectric substrate with dielectric constant ( =4.3). The slot antenna is cut on the top plane of the substrate and fed using a microstrip transmission line. The proposed antenna possesses a miniature size with a slot side length of about half the guided wavelength. Furthermore, the antenna performance curves show that it offers a multiband behavior with enhanced bandwidths. The proposed three Hilbert slots SIW antenna resonates at 4.6 and 9.3 GHz with bandwidths of 3.7 and 6.77 % within a return loss of -23.4 and -40.12 dB respectively. The simulation results show gains of 4.41 and 5.76 dB i , with radiation efficiency of -1.360 and -0.7283 dB. Such antennas can be ideal candidates for C and X-band applications. Keywordsa slot antenna, dual-band, substrate integrated waveguide (SIW).

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Cavity‐Backed SIW Slot Antennas at 60 GHz

Gong

2021

Substrate‐Integrated Millimeter‐Wave Antennas for Next‐Generation Communication and Radar Systems

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Substrate Integrated Waveguide Cavity-Backed Dumbbell-Shaped Slot Antenna for Dual-Frequency Applications

Cited by 90 publications

References 16 publications

Computer aided equivalent circuit model of SIW cavity backed triple band slot antenna

Computer aided equivalent circuit model of SIW cavity backed triple band slot antenna

Design of Hilbert Slot Substrate Integrated Waveguide (SIW) Antenna

Cavity‐Backed SIW Slot Antennas at 60 GHz

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