Optimum Design of Traveling-Wave SIW Slot Array Antennas

Hosseininejad, Seyed Ehsan; Komjani, Nader

doi:10.1109/tap.2012.2233704

Cited by 49 publications

(35 citation statements)

References 9 publications

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“…Because of its advanced features related to loss and narrow-beam waveguide slot array antennas are very attractive for satellites communication applications. The SIW slot antennas in the literature employ planar SIW structures [6,7,[10][11][12]. Both longitudinal slot [10] and transverse slot [13] on the broad wall of an SIW can be used as radiating element of a linearly polarized SIW slot array.…”

Section: Introductionmentioning

confidence: 99%

“…Slotted SIW antennas usually allocate constant spacing between slot elements. In [12], an optimization on the spacing between elements is done by using a combination of genetic algorithm and conjugate gradient method for a given pattern and efficiency requirements. SIW can also be used to design other types of antennas, such as H-plane sectoral horn antenna [18], H-plane horn antenna with split rings or rectangular patches and dielectric loading integrated to the aperture [19,20], horn antenna covered with SIW cavity frequency selected surface (SIWC-FSS) [21], conformal H-plane horn antenna on a conducting cylinder [22], substrate integrated E-plane waveguide (SIEW) horn antenna [23], half-mode substrate integrated waveguide (HMSIW) [24], an SIW-based hatshaped dielectric loaded antipodal linear tapered slot antenna (ALTSA) proposed and realized in [25], and leakage antenna [26].…”

Section: Introductionmentioning

confidence: 99%

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Design and Realization of Circular Polarized Siw Slot Array Antenna for Cubesat Intersatellite Links

Maged¹,

El-Hefnawi²,

Akah³

et al. 2018

PIER Letters

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Abstract-This paper presents the design and fabrication of an antenna based on Substrate Integrated Waveguide (SIW) for intersatellite crosslinks in C-band. The entire antenna consists of two elements of SIW slots array that is fed by a hybrid 3 dB directional coupler. The entire SIW slots array antenna is circularly polarized (CP), and each element has four longitudinal slots. The element's effective field matching is realized with a microstrip to SIW transition. The antenna design has been evaluated with its return loss, gain plot, and radiation pattern characteristics to validate the fabricated antenna. The fabricated prototype antenna radiates a left-handed circularly polarized (LHCP) electromagnetic wave with the peak gain of 5 dB and offers approximately 2% AR bandwidth around 5 GHz.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Realization of Circular Polarized Siw Slot Array Antenna for Cubesat Intersatellite Links

Maged¹,

El-Hefnawi²,

Akah³

et al. 2018

PIER Letters

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“…Slot array antennas can be classified into two types: standing-wave-fed and traveling-wave-fed [6]. The impedance bandwidth of the standing-wave-fed slot arrays reduces quickly as the number of slots in the arrays increases, due to their inherent feeding characteristics [7].…”

Section: Introductionmentioning

confidence: 99%

“…However, with the traveling-wave-fed substrate integrated waveguide (SIW) slot arrays, it is difficult to fabricate the absorbers in the SIW. The three dimensional coaxial matching loads [6,8] which are widely used at the terminal of the arrays destroys conformal and low profile characteristics of SIW slot arrays. Furthermore, SIW to microstrip transitions and coaxial connectors are required in this configuration.…”

Section: Introductionmentioning

confidence: 99%

Design of planar matching loads for traveling-wave-fed SIW slot arrays

Zhao

Zhi-ping

et al. 2017

IEICE Electron. Express

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This paper presents a novel planar matching load for travelingwave-fed substrate integrated waveguide (SIW) slot arrays. The load consists of a planar grounded coplanar waveguide (GCPW) matching load and a planar GCPW to SIW transition which makes the GCPW matching load compatible with the SIW. In the GCPW matching load a high frequency resistor is used to dissipate the remaining power. A traveling-wave-fed SIW slot array with the novel load is designed, fabricated and measured. The measurement results show the proposed planar matching load performs well over a wide band 24.2-26.0 GHz, and reflection coefficient and side lobe level (SLL) of the array is significantly reduced comparing with the array with no load. Keywords: matching load, traveling-wave-fed, SIW slot array, SIW Classification: Microwave and millimeter-wave devices, circuits, and modules References[1] M. M. Zhou, et al.: "Substrate integrated slot array antenna with required radiation pattern envelope," Int.

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“…That is, TWAs adjust the progressive phase between elements to enable scanning. One such TWA is the traveling wave slot array [11], [12]. In this case, resonant slots are machined into a waveguide to form a series fed array.…”

Section: Introductionmentioning

confidence: 99%

Ku-Band Traveling Wave Slot Array Scanned Via Positioning a Dielectric Plunger

Host

Chen

Volakis

et al. 2015

IEEE Trans. Antennas Propagat.

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This paper introduces a feeding concept aimed at eliminating the backend (phase shifters) of traditional phased arrays. A goal is to make phased arrays simpler and less costly for satellite communications. Accordingly, we employ a travelingwave array (TWA) using a single feedline whose propagation constant is controlled via a single, small, mechanical movement of a dielectric plunger to enable scanning. The dielectric plunger is positioned within a parallel-plate waveguide (PPW) transmission line (TL) that feeds the TWA. By adjusting the position of the dielectric plunger within the transmission line, the feedline achieves a propagation constant range of 1 ≤ k ef f /k0 ≤ 2.1, corresponding to scan angles of −32.6 • ≤ θ ≤ 34.2 • with an element spacing of d = 0.65λ0. That is, beam steering is achieved using a single feed and a simple linear mechanical movement (for any size array) without using phase shifters.A 20 element array was designed for stable realized gain across −25 • ≤ θ ≤ 25 • beam steering. Additionally, a proof of concept array was fabricated and measured. The simulated co-polarized realized gain closely matches the fabricated TWA patterns.

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Optimum Design of Traveling-Wave SIW Slot Array Antennas

Cited by 49 publications

References 9 publications

Design and Realization of Circular Polarized Siw Slot Array Antenna for Cubesat Intersatellite Links

Design and Realization of Circular Polarized Siw Slot Array Antenna for Cubesat Intersatellite Links

Design of planar matching loads for traveling-wave-fed SIW slot arrays

Ku-Band Traveling Wave Slot Array Scanned Via Positioning a Dielectric Plunger

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