Leaky-Wave Antenna Based on Modified Aperture Half-Mode Substrate Integrated Waveguide

Javanbakht, Nima; Syrett, Barry; Amaya, Rony E.

doi:10.1109/apusncursinrsm.2018.8608880

Cited by 9 publications

(12 citation statements)

References 16 publications

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“…Although the SLL of our proposed antenna is not optimum, it is better than the reported ones in [3], [44], and [58]. The SLL can be reduced by tapering the side via fence [46], [47] or the open side aperture [48], [49], which is the subject of ongoing research. Realizing the proposed design on a thicker substrate can improve the gain by reducing the conductor loss and improving the impedance matching.…”

Section: Simulated and Measured Resultsmentioning

confidence: 94%

Fixed Frequency Beam-Scanning HMSIW-Based Leaky-Wave Antenna Composed of Circular Slots in V-Shape Configuration

et al. 2021

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A new reconfigurable slotted antenna is presented in this manuscript. The proposed antenna is realized on a half-mode substrate integrated waveguide (HMSIW). The beam-steering is achieved using embedded varactor diodes in circular cells. Sweeping the bias voltage causes variations of the phase constant, which leads to the fixed frequency beam-scanning. Each reconfigurable cell includes a circular slot at the top plate and varactor switch, DC block, and RF block at the backside of the structure. The operating frequency is chosen as 28.5 GHz in the support of the upcoming 5G mm-wave communications systems. The proposed antenna beam scans 29° of space by switching among different states at 28.5 GHz. The length, width, and height of the antenna are 67 mm, 48 mm, and 0.32 mm, respectively. The proposed antenna's main novelties are compactness and electronic beam-scanning capability using a single switch per cell. The measured peak realized gain and sidelobe level (SLL) at 28.5 GHz are 8.2 ± 0.6 dBi and 5 dB, respectively. While the impedance bandwidth of the proposed antenna is 1.5 GHz. A good agreement between measured and simulated results is observed. The discrepancies are investigated through a sensitivity analysis. Fixed frequency beamscanning capability, compactness, simplicity of the assembly, backward radiation, and slight gain variation of the proposed antenna make it a suitable candidate for blind-spot monitoring and 5G vehicle to everything (V2X) communications.INDEX TERMS antenna, beam-scanning, compact, leaky-wave, varactor diode.

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Section: Simulated and Measured Resultsmentioning

confidence: 94%

Fixed Frequency Beam-Scanning HMSIW-Based Leaky-Wave Antenna Composed of Circular Slots in V-Shape Configuration

et al. 2021

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“…In [12], an LWA based on a periodic set of slots printed on a dielectric waveguide is introduced to obtain low side lope level (SLL). Different SIW leaky-wave antennas are proposed in [13]. The SIW long slot leaky-wave antenna is an example of SIW leaky wave antennas.…”

Section: Introductionmentioning

confidence: 99%

“…The SIW long slot leaky-wave antenna is an example of SIW leaky wave antennas. In [13], a straight slot etched on the broadside of a meandering SIW exhibits SLL which can be acquired by tapering the aperture distribution of the centered slot. As the slot is designed to be symmetrical, the SIW straight long slot LWA can enhance cross-polarization level up to 30 dB.…”

Section: Introductionmentioning

confidence: 99%

Complementary Split Ring Resonator Loaded Substrate Integrated Waveguide Leaky Wave Antenna

Yousef¹,

Attiya²,

Shaalan³

2019

OJAPr

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In this paper we present the design of a leaky wave antenna based on Substrate Integrated Waveguide (SIW) loaded by Complementary Split Ring resonator (CSRR). The proposed antenna is designed for 5G application with a center frequency around 28 GHz. The antenna is implemented on Roger RT/Duriod 5880. The loading CSRRs are designed to resonate at 28 GHz. The design is simulated by using both High-Frequency Simulation Software (HFSS) and Computer Simulation Technology (CST) for verification. Experimental measurements are also presented.

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“…5G is the latest established communications standard with several diverse applications including the internet of things (IoT) [1]- [2] and vehicle to everything (V2X)…”

Section: Motivation and Objectivesmentioning

confidence: 99%

“…communications [1]- [2]. Research trends are pushing the use of higher frequency bands since the lower frequency bands tend to be very crowded [3].…”

Section: Motivation and Objectivesmentioning

confidence: 99%

Analysis and Design of Low-Profile Reconfigurable Leaky-Wave Antennas Based on Substrate Integrated Waveguide for 5G Millimeter-Wave Applications

Javanbakht¹

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5G millimeter-wave (mm-wave) applications have several challenges, such as detection accuracy, interference from other channels, high path loss, covering several users in a dense area, and vulnerability to the environmental conditions. Several antenna technologies were proposed in this dissertation to address some of the above-mentioned challenges in 5G applications with a focus on wireless networks and vehicle to everything (V2X) communications.Leaky-wave antennas (LWAs) are suitable candidates for 5G mm-wave applications due to their beam-scanning capability, compactness, low cost, and ease of fabrication.Substrate integrated waveguide (SIW) and half-mode substrate integrated waveguide (HMSIW) are suitable candidates for realizing LWAs because of their low-profile and integration capability.Several design approaches were introduced in this dissertation to improve the performance of SIW/HMSIW LWAs in 5G mm-wave applications. Some of the proposed antennas have a relatively wide beam-scanning range, suitable for radar systems and V2X communications, while others have small beam-squint, suitable for point-to-point communications and seeker antennas.Tapering the side aperture of an HMSIW and the feed transition of a SIW resulted in side-lobe level (SLL) reduction to enhance the detection accuracy and reduce sensitivity to interference. Applying the proposed methods reduced the SLL of an HMSIW LWA and a SIW LWA to -11.2 dB and -11.4 dB, respectively, in the mm-wave frequency band. I want to thank my wonderful family, Mr. Saeed Javanbakht, Mrs. Mozhdeh Etminan, and Ms. Ayda Javanbakht, for all their supports. I also want to thank my magnificent supervisors, Prof. Barry Syrett, Prof. Rony E. Amaya, and Prof. Jafar Shaker, for their supports and guidance during my Ph.D. studies, as they are like mentors and role models to me. I am grateful to the Ph.D. examination committee, Prof. Dereck McNamara, Prof.

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Leaky-Wave Antenna Based on Modified Aperture Half-Mode Substrate Integrated Waveguide

Cited by 9 publications

References 16 publications

Fixed Frequency Beam-Scanning HMSIW-Based Leaky-Wave Antenna Composed of Circular Slots in V-Shape Configuration

Fixed Frequency Beam-Scanning HMSIW-Based Leaky-Wave Antenna Composed of Circular Slots in V-Shape Configuration

Complementary Split Ring Resonator Loaded Substrate Integrated Waveguide Leaky Wave Antenna

Analysis and Design of Low-Profile Reconfigurable Leaky-Wave Antennas Based on Substrate Integrated Waveguide for 5G Millimeter-Wave Applications

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