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Journal of Applied Physics, 1953
Approximate formulas for the complex propagation constant and characteristic field configuration for dielectric-filled traveling wave slot antennas are obtained by a variational procedure. To set up the variational method, the generalized reciprocity theorem for traveling wave line sources is deduced; it differs considerably from the reciprocity ...
J. Hines, V. Rumsey, C. Walter
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Approximate formulas for the complex propagation constant and characteristic field configuration for dielectric-filled traveling wave slot antennas are obtained by a variational procedure. To set up the variational method, the generalized reciprocity theorem for traveling wave line sources is deduced; it differs considerably from the reciprocity ...
J. Hines, V. Rumsey, C. Walter
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Frontiers in Optics 2012/Laser Science XXVIII, 2012
We discuss progress in the development of slot antennas based on resonant apertures. We show that simultaneous field enhancement and beaming can be produced.
X. M. Goh +6 more
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We discuss progress in the development of slot antennas based on resonant apertures. We show that simultaneous field enhancement and beaming can be produced.
X. M. Goh +6 more
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IEEE Antennas and Propagation Magazine, 2001
When compared to printed cavity-backed spirals, slot spiral antennas offer the possibility of designs that are conformal and very thin. We discuss the physical characteristics of a cavity-backed slot spiral, as well as the associated infinite balun and termination designs.
J.L. Volakis +2 more
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When compared to printed cavity-backed spirals, slot spiral antennas offer the possibility of designs that are conformal and very thin. We discuss the physical characteristics of a cavity-backed slot spiral, as well as the associated infinite balun and termination designs.
J.L. Volakis +2 more
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2010 IEEE Antennas and Propagation Society International Symposium, 2010
The impedance of an open slot antenna at its second resonance has a wider bandwidth than at the ubiquitous first resonance (half wavelength) configurations [1]-[4]. When the supporting groundplane size is small (less than a square wavelength), the wideband nature can be retained [4], but the pattern changes owing to the diffractions from the edges of ...
J X Yun, R G Vaughan
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The impedance of an open slot antenna at its second resonance has a wider bandwidth than at the ubiquitous first resonance (half wavelength) configurations [1]-[4]. When the supporting groundplane size is small (less than a square wavelength), the wideband nature can be retained [4], but the pattern changes owing to the diffractions from the edges of ...
J X Yun, R G Vaughan
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Dualband DRA-slot hybrid slot antenna
2007 IEEE Antennas and Propagation Society International Symposium, 2007A dielectric resonator antenna (DRA) is placed on top of a slotted cavity to form a hybrid antenna. An L-probe is placed inside the cavity to feed the zonal slot, cut onto the cavity, and the DRA simultaneously. Ansoft HFSS was used to analyze the proposed hybrid antenna, which provides a dual-band operation.
Y. Ding, K. W. Leung, Y.C. Or
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Stacked slot-coupled printed antenna
IEEE Microwave and Guided Wave Letters, 1991". IEEE Microw. Guided Wave Lett., vol.1, no.10, p.288-290, 1991.
Croq, F., Papiernik, A.
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IRE Transactions on Antennas and Propagation, 1955
The conditions for endfire radiation from a traveling-wave slot are discussed. These are that the phase velocity of the traveling wave be equal to or less than the velocity of light in free space and that the aperture be excited with a strong longitudinal component of electric field.
B. Stephenson, C. Walter
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The conditions for endfire radiation from a traveling-wave slot are discussed. These are that the phase velocity of the traveling wave be equal to or less than the velocity of light in free space and that the aperture be excited with a strong longitudinal component of electric field.
B. Stephenson, C. Walter
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