Aperture field and circuit parameters of cavity-backed slot radiator

Hadidi, A.; Hamid, M.

doi:10.1049/ip-h-2.1989.0025

Cited by 31 publications

(21 citation statements)

References 10 publications

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“…In regard to the cavity-backed slot antenna, a method of moments analysis has been reported [10,11]. Although these papers report a formulation for a single element, no formulation is presented for a slot array with a single common cavity.…”

Section: Methods Of Analysismentioning

confidence: 99%

Cavity‐backed slot array antenna with backward excitation

Yamamoto

Ishizaki

Muramoto

et al. 2002

Electron. Comm. Jpn. Pt. I

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SUMMARYThe slot array antenna with backward excitation is promising as a constituent element of a planar multisector antenna. This paper deals with a slot array antenna with backward excitation that prevents radiation into the backside by installing a cavity. With a view to simplifying the fabrication process, all slots in the array share one cavity. A design guideline is discussed for reducing mutual coupling between the elements. It is found that the cavity width should cause the TE 10 mode to be cut off. For a four-element array with a cavity satisfying this condition, the characteristics are evaluated by the spectral domain moment method. It is shown that a beam tilt toward the end fire direction can be obtained, similarly to the case without a cavity. The antenna characteristics are evaluated in terms of cavity length and depth. It is demonstrated that the effect of the cavity length on the antenna characteristics is significant and that the cavity thickness can be reduced. Further, a test experiment is conducted at 19 GHz to confirm the validity of the numerical study.

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Section: Methods Of Analysismentioning

confidence: 99%

Cavity‐backed slot array antenna with backward excitation

Yamamoto

Ishizaki

Muramoto

et al. 2002

Electron. Comm. Jpn. Pt. I

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“…The analysis for this type of structure requires consideration of the slot resonances alongside the cavity resonances [13] [14]; however, the situation here using a stripline feed (on an electrically-thin substrate) needs only consideration of the cavity as a two-dimensional resonator. The slot"s lowest resonate frequency (for the TE10 slot mode) is when its length is approximately a half wavelength in air (the dielectric constant of the substrate having a secondary effect on the resonant frequency), while the orthogonal cavity modes" resonant frequencies depend primarily upon the dimensions and substrate dielectric constant.…”

Section: B Fixed-frequency Prototypementioning

confidence: 99%

Configurable microwave structures for software defined (and cognitive) radio front ends

Warr

Hilton

2010

2010 10th Mediterranean Microwave Symposium

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Abstract-Both Software Defined Radio and Cognitive Radio require a flexible transceiver front end. This paper introduces solutions to two important features of such a device; the antenna and the filter. These are both microwave resonant structures and so share design trade-offs and restrictions; in this application they must both offer some degree of tunability or wideband performance. MEMS technology is proposed as the enabler for reconfigurability in the distributed microwave structures. This technology overcomes the shortcomings of both large-scale mechanical devices and semiconductor-based solutions.

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“…A more general analysis requires some method for determining the actual field distribution within the slots. Overlapping sinusoidal basis functions have been employed by Hadidi and Hamid and others [4]- [6], and were chosen for this analysis. As in most other studies of narrow-slot antennas, the fields are assumed here to be uniform across the width of the slots.…”

Section: Introductionmentioning

confidence: 99%

Rectangular cavity-backed 4-slot array

Schweinitz

Lee

2001

IEEE Trans. Antennas Propagat.

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A cavity-backed rectangular 4-slot array can be used to emulate a monopole where flush mounting is required. The impedance and radiation patterns of this type of antenna are investigated. A mathematical model is developed with sufficient generality to allow analysis of a cavity filled with any homogeneous material. Several specific configurations are analyzed. Calculated results are compared with measured data.

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Aperture field and circuit parameters of cavity-backed slot radiator

Cited by 31 publications

References 10 publications

Cavity‐backed slot array antenna with backward excitation

Cavity‐backed slot array antenna with backward excitation

Configurable microwave structures for software defined (and cognitive) radio front ends

Rectangular cavity-backed 4-slot array

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