Patent
Conformal spiral antenna
TLDR
In this paper, an electrically small, microstrip radiator designed for small-diameter mile applications is presented, which includes a cylindrical tube of epoxy fiberglass dielectric having a spiral conducting strip formed thereon.Abstract:
An electrically small, microstrip radiator designed for small-diameter mile applications. The preferred embodiment comprises a cylindrical tube of epoxy fiberglass dielectric having a spiral conducting strip formed thereon. The tubular construction permits the antenna to be conformally mounted to the surface of the missile. RF input coupling may be achieved by an inductive post, and high radiation efficiency is obtained by strongly coupling RF currents to the body of the missile and exciting the dipolar mode of radiation. The design includes means for mechanically tuning the antenna over a narrow frequency range. The resultant spiral-slot antenna produces an axially polarized radiation field and a dipole radiation pattern with isotropic gain in a low cost and rugged construction.read more
Citations
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Patent
Multioctave microstrip antenna
TL;DR: In this paper, a multioctave microstrip antenna for mounting to one side of a ground plane and including a metal foil spiral-mode antenna element and a dielectric substrate was proposed.
Patent
Coaxial dipole antenna with extended effective aperture
TL;DR: In this article, the authors proposed a coaxial dipole antenna with a reactive element coupled to the feed port by an electrical reactance which is insufficient to increase the electrical length of the second radiator to one quarter of the wavelength.
Patent
Dielectrically loaded antenna and a handheld radio communication unit including such an antenna
TL;DR: In this article, the authors proposed a miniature antenna for operation at frequencies in excess of 200 MHz with a ceramic core in the form of a cylindrical rod having a relative dielectric constant greater than 5.
Patent
Conical spiral antenna
TL;DR: In this article, a photoresist-type chemical etching process is used to define a computer-generated flat pattern of conductors as if a complex conical spiral had been cut apart along a straight line through the apex and laid flat.
Patent
Around-a-mast quadrifilar microstrip antenna
TL;DR: In this article, a downlink UHF antenna with four equispaced arms plated at an angle on a fiberglass cylinder is designed, and a coaxial connector is connected to each of the four arms with the metal plated inner surface as the common ground.
References
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Patent
Solid-state oscillator having such a structure that an oscillating element, a resonator and a radiator of electromagnetic waves are unified in one body
M Migitaka,T Okoshi +1 more
TL;DR: In this paper, a solid-state oscillator for radiating electromagnetic waves in the frequency range from microwave to millimeter wave including a planar resonator, a high frequency choke, a bias terminal and a substrate which are unified in one body.
Patent
Electric monomicrostrip dipole antennas
TL;DR: The electric monomicrostrip dipole antenna as mentioned in this paper is a family of new electric mistrip antennas, which consists of a thin electrically conducting element formed on one side of a dielectric substrate; the ground plane being on the other side of the substrate.
Patent
Broad-band spiral-slot antenna
TL;DR: In this article, a broad-band antenna device comprising a variable aperture element which radiates or receives signals in the high frequency portion of the band and a pair of fixed aperture elements which radiate or receive signals in low frequency portion, is described.
Patent
Flush mounted antenna and receiver tank circuit assembly
Krutsinger J,Munson R,Polson J +2 more
TL;DR: In this paper, an assembly for transmitting and receiving communication signals is disclosed and generally includes a first or inner cylindrical conductor, the length of which is substantially equal to one-half wavelength at a predetermined operating frequency and a second concentrically positioned outer cylinear conductor.