Traveling-Wave Slot Antennas

Hines, J. N.; Rumsey, V.; Walter, C.

doi:10.1109/jrproc.1953.274190

Cited by 71 publications

(27 citation statements)

References 5 publications

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“…To do so, KAPRI employs 2 meter long slotted waveguide antennas [47], [48]. They are constructed by cutting slots resonating at the design frequency in a section of rectangular waveguide.…”

Section: B Beam Squint Correctionmentioning

confidence: 99%

Polarimetric Calibration of the Ku-Band Advanced Polarimetric Radar Interferometer

Baffelli

Frey

Werner

et al. 2018

IEEE Trans. Geosci. Remote Sensing

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Abstract-Differential interferometry using groundbased radar systems permits to monitor displacements in natural terrain with high flexibility in location, time of acquisition and revisit time. In combination with polarimetric imaging, discrimination of different scattering mechanisms present in a resolution cell can be obtained simultaneously with the estimation of surface displacement. In this paper we present the pre-processing steps and the calibration procedure required to produce high-quality calibrated polarimetric single-look complex imagery with KAPRI, a new portable Ku-band polarimetric radar interferometer. The processing of KAPRI data into SLC images is addressed, including the correction of beam squint and of azimuthal phase variations. A polarimetric calibration model adapted to the acquisition mode is presented and used to produce calibrated polarimetric covariance matrix data. The methods are validated by means of a scene containing five trihedral corner reflectors. Data pre-processing is assessed by analyzing the oversampled response of a corner reflector and the polarimetric calibration quality is verified by computing polarimetric signatures and residual calibration parameters.

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“…To do so, KAPRI employs 2 meter long slotted waveguide antennas [47], [48]. They are constructed by cutting slots resonating at the design frequency in a section of rectangular waveguide.…”

Section: B Beam Squint Correctionmentioning

confidence: 99%

Polarimetric Calibration of the Ku-Band Advanced Polarimetric Radar Interferometer

Baffelli

Frey

Werner

et al. 2018

IEEE Trans. Geosci. Remote Sensing

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“…The complex propagation constant on a transmission line with a slot in the wider wall of an air-filled waveguide with TM 11 excitation was measured and calculated in [1]. It was also calculated by a transverse resonant procedure employing a transverse equivalent network and the perturbation solution of the resonance equation [2].…”

Section: Discussion Of Resultsmentioning

confidence: 99%

“…A code for computing the complex propagation constant by the method presented in this paper has been written and tested. Comparisons of data from [1] and [2] with our own data for the squared slotted waveguide are shown in Figs. 2 and 3 where h=b.…”

Section: Discussion Of Resultsmentioning

confidence: 99%

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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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“…In contrast, the radiation of the traveling wave from the transmission line offers a wider frequency band. Traveling wave slot antennas exploiting waveguides were designed, investigated and measured fifty years ago [2]- [4]. Very sophisticated leaky wave antennas based on the stub-loaded rectangular waveguide were reported in [5], [6].…”

Section: Introductionmentioning

confidence: 99%

Low Profile Slotted Flat Waveguide Leaky Wave Antenna

Zehentner

Macháč

Zabloudil

2006

2006 IEEE MTT-S International Microwave Symposium Digest

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-This paper presents the application of a flat waveguide with a longitudinal slot in the middle of its wider wall for the design of a leaky wave antenna. The antenna radiates into one relatively narrow main beam and its gain is 14.2 dB at 4.75 GHz. The characteristics and radiation aspects of the antenna are discussed. The measured antenna characteristics are in accord with those predicted by simulation.

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Traveling-Wave Slot Antennas

Cited by 71 publications

References 5 publications

Polarimetric Calibration of the Ku-Band Advanced Polarimetric Radar Interferometer

Polarimetric Calibration of the Ku-Band Advanced Polarimetric Radar Interferometer

Flat waveguide with a longitudinal slot

Low Profile Slotted Flat Waveguide Leaky Wave Antenna

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