Patent
Corner fed electric microstrip dipole antenna
TLDR
In this paper, a corner fed electric microstrip dipole antenna consisting of a thin eleccally conducting, rectangular shaped radiating element formed on one surface of a dielectric substrate, the ground plane being on the opposite surface.Abstract:
A corner fed electric microstrip dipole antenna consisting of a thin eleccally conducting, rectangular shaped radiating element formed on one surface of a dielectric substrate, the ground plane being on the opposite surface. The feed point is located at one corner of the antenna element and the input impedance is matched with a matching microstrip transmission feed line connected to the corner of the antenna. The length of the radiating element is greater than the width and determines the resonant frequency along the Y axis (i.e., length dimension) and the width determines the resonant frequency along the Z axis (i.e., width dimension). This antenna is capable of generating linear polarized radiation along the length thereof with minimal cross-polarization when the radiating element width dimension approaches one-quarter waveguide wavelength and less using a single corner fed element and single feed point. Elliptical polarization is also available with the rectangular radiating element.read more
Citations
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Patent
Wireless communication device and method
Patrick F. King,Ian J. Forster +1 more
TL;DR: In this paper, a wireless communication device contains at least one conductive tab that provides an antenna, and the tab(s) form a pole antenna and the tabs may also be attached across a slot to form a slot antenna.
Patent
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TL;DR: In this article, a multi-band microstrip antenna comprising a plurality of separate radiat elements which operate at widely separated frequencies from a single common input point is presented, where the common input points are fed at all the desired frequencies from the single transmission feed line.
Patent
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TL;DR: In this article, antenna elements comprised of a dipole reactively coupled to a feed line on a microstrip board are shown to be linearly and circularly polarized arrays of such elements.
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TL;DR: The use of switching diodes in place of shorting posts provides the means of electronically switching the frequency and polarization characteristics of the antenna as discussed by the authors. But the use of switches is not always a good idea.
Patent
Grounded antenna for a wireless communication device and method
Patrick F. King,Ian J. Forster +1 more
TL;DR: In this article, a wireless communication device includes an antenna for wireless communication with a remote interrogator, where the antenna is a quarter wavelength long with one end of the antenna being grounded to provide desired impedance matching characteristics.
References
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Patent
Microstrip antenna structures and arrays
TL;DR: In this article, a microstrip antenna structure formed from a unitary conducting surface separated from a ground plane by a dielectric film where the r.f. radiators are fed from an outside edge to selectively produce linearly and/or circularly polarized radiation at a selected resonant frequency(s).
Patent
Dual slot antenna device
Bullai C,Krutsinger J,Munson R +2 more
TL;DR: In this paper, a dual-slot antenna assembly is described, which consists of a pair of concentrically positioned and radially spaced cylindrical conductors defining the circumferential slots which are longitudinally spaced one-half wavelength apart at the anticipated operating frequency of the antenna device.
Patent
Diagonally fed electric microstrip dipole antenna
TL;DR: In this article, a diagonally fed electric microstrip dipole antenna consisting of a thin ctrically conducting, rectangular-shaped element formed on one surface of a dielectric substrate, the ground plane being on the opposite surface.