Broadband Substrate Integrated Waveguide Cavity-Backed Bow-Tie Slot Antenna

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

doi:10.1109/lawp.2014.2330743

Cited by 162 publications

(94 citation statements)

References 11 publications

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“…To validate the simulated performance, the proposed design has been fabricated by using a standard PCB process. Compared with the antenna reported in Reference with the profile of 0.09 λ 0 and cavity size of 0.72 λ 0 × 0.75 λ 0 , the profile of the proposed SIW cavity antenna is less than 0.04 λ 0 and the cavity size is only 0.43 λ 0 × 0.43 λ 0 . In addition, a SMA connector is soldered for measurements, where the inner pin and outer conductor are soldered to the top and bottom of the cavity, respectively.…”

Section: Resultsmentioning

confidence: 63%

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Low‐profile SIW cavity antenna with enhanced bandwidth and controllable radiation null

Niu

Tan

2020

Micro & Optical Tech Letters

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A low‐profile substrate‐integrated‐waveguide (SIW) cavity antenna with enhanced bandwidth and a controllable radiation null is proposed. Serving as radiating elements, two slots are etched on a square SIW cavity. Four cavity modes including a fundamental mode (FM), a half mode (HM), and two quarter modes (QMs) are excited by a capacitively coupled feeding disc. Their frequencies can be controlled by adjusting positions of the slots and disc. Three radiating modes (ie, a HM and two QMs) are utilized to realize an antenna passband with enhanced bandwidth while a nonradiating mode (ie, the FM) is utilized to achieve a radiation null resulting in the sharp upper sideband and high stopband suppression. Experimental results show that the fabricated antenna with the profile of less than 0.04λ0 obtains the bandwidth of 440 MHz, gain of 5.24 dBi, and efficiency of 84%. However, the gain sharply drops to −22.07 dBi and the efficiency achieves a very low value of 0.15% at the radiation null. Due to covering the frequency band of 3.40‐3.60 GHz, the proposed design has potential applications for fifth‐generation (5G) wireless systems.

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Section: Resultsmentioning

confidence: 63%

“…Unfortunately, they typically suffer from narrow bandwidth due to high‐quality factors of these modes. The substrate removal and hybrid cavity modes have been utilized to enhance impedance bandwidth . However, the out‐of‐band radiation performance of these antennas has received little attentions.…”

Section: Introductionmentioning

confidence: 99%

Low‐profile SIW cavity antenna with enhanced bandwidth and controllable radiation null

Niu

Tan

2020

Micro & Optical Tech Letters

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“…The fundamental mode frequency of the unloaded cavity is at 13.866 GHz. After introduction of the slot, the fundamental shifts to 13.98 GHz and two hybrid modes are generated at 10.48 GHz and 10.77 GHz. The fabricated prototype of the proposed antenna is shown in Figure .…”

Section: Antenna Designmentioning

confidence: 99%

“…However, these antennas are, in general, several wavelengths long and hence not suitable for applications requiring compact designs. SIW based cavity backed slot antennas are good alternatives for achieving moderate gain without the requirement for large device footprints. By increasing the efficiency of the antenna, the overall gain of the antenna can be improved, which requires that the loss components in the cavity should be reduced.…”

Section: Introductionmentioning

confidence: 99%

Air filled substrate integrated waveguide cavity backed slot antenna

Adhikary

Mukherjee

Biswas

et al. 2018

Micro & Optical Tech Letters

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“…Many designs have been reported recently to generate dual band and broadband performance in SIW cavity-backed slot antenna [15,16]. 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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Broadband Substrate Integrated Waveguide Cavity-Backed Bow-Tie Slot Antenna

Cited by 162 publications

References 11 publications

Low‐profile SIW cavity antenna with enhanced bandwidth and controllable radiation null

Low‐profile SIW cavity antenna with enhanced bandwidth and controllable radiation null

Air filled substrate integrated waveguide cavity backed slot antenna

Design of Hilbert Slot Substrate Integrated Waveguide (SIW) Antenna

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