Linear Patch Array Over Substrate Integrated Waveguide for Ku-Band

Garcia-Valverde, D.; Masa‐Campos, José Luis; Sánchez-Olivares, Pablo; Ahmed, Bazil Taha; Córcoles, Juan

doi:10.1109/lawp.2013.2245623

Cited by 15 publications

(19 citation statements)

References 10 publications

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“…Because of the manual assembly of the four substrate laminates, air bubbles between layers are a common issue in the multi‐layered structure. Consequently, the effective dielectric constant of the overall structure is slightly modified, and a frequency shift is generated . Despite the fact that air bubbles are scattered and nonuniform, as can be observed in the zoom side view of the manufactured prototype Figure (c), further simulations were carried out to analyse the effect of such bubbles, which were recreated as uniform air layers.…”

Section: Resultsmentioning

confidence: 99%

“…(a) results]. The typical frequency beam scanning of travelling wave antennas is solved by the use of the corporate feeding network topology, so the usable antenna bandwidth is not limited by the beam tilt shift in frequency.…”

Section: Resultsmentioning

confidence: 99%

“…Compact structures are attainable with linear arrays, reducing manufacturing costs and avoiding grating lobes issues. Alternatively, multi‐layered linear antennas with microstrip radiating elements have been developed . Slotted apertures are outperformed by microstrip patches in terms of gain and matching bandwidth.…”

Section: Introductionmentioning

confidence: 99%

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Linearly polarized small patch array fed by corporate SIW network

García-Marín

Masa‐Campos

Tamayo‐Domínguez

2016

Micro & Optical Tech Letters

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In this article, a linearly polarized 2 × 2 patch array uniformly fed by a corporate substrate integrated waveguide network for Ku band is presented. Undesired main beam steering is avoided by means of a fully corporate feeding network, although grating lobes may appear due to greater separation between radiating elements. Moreover, a reduced patch separation to avoid grating lobe appearance leads to an antenna matching coefficient degradation due to the proximity of antenna discontinuities. In consequence, a tradeoff approach has been developed, achieving a measured 4.1% matching bandwidth and a measured gain of 13.27 dBi, which corresponds to an 86% radiation efficiency. Good agreement between simulated and measured results is observed in all cases. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:587–593, 2016

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Linearly polarized small patch array fed by corporate SIW network

García-Marín

Masa‐Campos

Tamayo‐Domínguez

2016

Micro & Optical Tech Letters

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“…Therefore, the evaluation of mutual coupling between adjacent slots is required for the design of the planar array. The iterative model applied in this paper is similar to the one presented in [12], where authors considered near E-field monitors in front of each radiating element. In this paper, a base cell of 3 × 3 elements is used (Figure 3).…”

Section: Mutual Coupling Modelmentioning

confidence: 99%

Siw 2d Planar Array With Four Cross Slots Radiator and Tuning Vias

Sánchez-Olivares¹,

Masa‐Campos²,

Ruiz‐Cruz³

et al. 2013

PIER C

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Abstract-A Substrate Integrated Waveguide (SIW) planar array is presented using a right handed circularly polarized (RHCP) element with four crossed tilted radiating slots. In addition, a pair of metallic tuning vias is included to really improve the reflection of longest slots. A corporate feeding network over SIW has been designed for distributing the input signal to 128 radiating elements, divided into 8 progressive wave linear arrays of 16 elements each. The designed planar array has been manufactured and measured to verify the antenna performance. 25.5 dB gain, 2.33 dB axial ratio, as well as 85% radiation efficiency values have been experimentally achieved at 17 GHz. A 3% usable bandwidth (16.75-17.25 GHz) is obtained due to the typical frequency main beam tilt dispersion in the elevation plane of the progressive wave arrays.

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“…These structures were fed by parallel plate waveguides. In [16], a substrate integrated waveguide (SIW) feeding network was used for the first time to feed a patch array. A compensation model was also satisfactory introduced to reduce mutual coupling effects.…”

Section: Introductionmentioning

confidence: 99%

Design and characterisation model for a linearly polarised patch array fed by serial rectangular waveguide network

Casas-Olmedo

Masa‐Campos

Tamayo‐Domínguez

2014

IET Microwaves, Antennas & Propagation

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A novel method for considering radiating structures independently to their feeding networks is presented. The integration of both parts separately designed suffers a critical misalignment with the theoretical behaviour caused by the mutual coupling effects between adjacent elements. This method analyses radiated near E‐field monitors to adjust the whole antenna after joining both independently designed parts. A linearly polarised patch array fed by a rectangular waveguide with internal coupling patches for X band (11–12 GHz) has been designed to validate the method performance. A double stacked microstrip patch structure with an integrated phase compensation microstrip line has been used as radiating element. The coupling patches inside the waveguide are connected to the external radiating patches by means of metallic probes. The presented method requires changes in the feeding structure as in the radiating elements. Several prototypes have been manufactured and measured: the feeding waveguide structure connectorised, the radiating patches connectorised, the union of both with SMA transitions and the final integration into the complete antenna. 18.5 dBi gain and 85% efficiency peak values, as well as 6% usable bandwidth have been experimentally achieved.

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Linear Patch Array Over Substrate Integrated Waveguide for Ku-Band

Cited by 15 publications

References 10 publications

Linearly polarized small patch array fed by corporate SIW network

Linearly polarized small patch array fed by corporate SIW network

Siw 2d Planar Array With Four Cross Slots Radiator and Tuning Vias

Design and characterisation model for a linearly polarised patch array fed by serial rectangular waveguide network

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