Leaky-wave antennas I: Rectangular waveguides

Goldstone, L.; Oliner, A.A.

doi:10.1109/tap.1959.1144702

Cited by 227 publications

(102 citation statements)

References 7 publications

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“…and quasi-uniform antennas [11]. In parallel, modulated surfaces were analyzed for the propagation of surface and leaky waves in [12] and, soon after, for radiation from periodic structures [13].…”

Section: Introductionmentioning

confidence: 99%

3-D-Printed 96 GHz Bull’s-Eye Antenna With Off-Axis Beaming

Beaskoetxea

Maci

Navarro‐Cía

et al. 2017

IEEE Trans. Antennas Propagat.

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Abstract-Reducing the profile, footprint and weight of antennas embarked on aircrafts, drones or satellites has been a long pursued objective. Here we tackle this issue by developing a millimeter-wave 96 GHz elliptical Bull's-Eye antenna with offaxis radiation at 16.5º that has been fabricated by low cost 3D printing stereolithography, followed by metal coating. The theoretical basis for optimum off-axis operations is explained. Measurement results show an overall good agreement with simulations, displaying a gain of 17 dB and a 3.5º beamwidth (Eplane) at the operational frequency. The off-axis beaming enlarges the potential applicability of this technology with respect to the broadside beam solution.

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Section: Introductionmentioning

confidence: 99%

3-D-Printed 96 GHz Bull’s-Eye Antenna With Off-Axis Beaming

Beaskoetxea

Maci

Navarro‐Cía

et al. 2017

IEEE Trans. Antennas Propagat.

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“…It was also calculated by a transverse resonant procedure employing a transverse equivalent network and the perturbation solution of the resonance equation [2]. A code for computing the complex propagation constant by the method presented in this paper has been written and tested.…”

Section: Discussion Of Resultsmentioning

confidence: 99%

“…On the other hand, traveling wave slot antennas made of waveguides were designed, investigated and measured fifty years ago [1]- [2]. However, the concept of their analysis was based on methods used in classic waveguide techniques.…”

Section: Introductionmentioning

confidence: 99%

Flat waveguide with a longitudinal slot

Zehentner

Mrkvica

Macháč

2005

IEEE MTT-S International Microwave Symposium Digest, 2005.

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-This paper presents an analysis of a flat slotted waveguide by the spectral domain method finalized by a complex root search procedure. Matching of fields from bounded and unbounded regions at the common interface is explained and applied to satisfy the boundary conditions in the spectral domain. New theoretical findings are reported, and the dispersion characteristics of particular modes are shown and discussed with regard to their potential application. The different behaviour of the odd and even modes is pointed out. Their affinity to the modes in a standard rectangular waveguide is noted. A hint is given of a modification of the line cross-section resulting in the propagation of a bound mode besides the propagation of the space leaky modes.Index Terms -Boundary conditions, complex propagation constants, flat slotted waveguide, leaky waves, spectral domain method.

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“…A uniform structure has a cross section that is uniform (constant) along the length of the structure, usually in the form of a waveguide that has been partially opened to allow radiation to occur [6]. The guided wave on the uniform structure is a fast wave, and thus radiates as it propagates.…”

Section: Wwwintechopencommentioning

confidence: 99%

“…This method of producing radiation by exciting higher order modes in a transmission line has been documented since the 1950's [6]. By the 1970's, rectangular waveguides, circular waveguides, and coaxial cables were in use as leaky traveling wave antennas.…”

Section: Lwa In Microstripmentioning

confidence: 99%