It can be equipped with R2000 linearly (1.8dBi) or circularly (4.0dBi) polarized antenna. That it can read tags in bulk from long distances enables enterprises to deploy this single device in many areas with enhanced efficiency, especially in asset management, retail, warehousing, fleet management, etc. Radial Line Slot Antennas | SpringerLink A radial line slot antenna (RLSA) is a circularly polarized high efficiency planar array. Two types of RLSAs, a single-layered and a double-layered one, were released commercially for 12 GHz band direct broadcast satellite (DBS) reception. Design of a linearly-polarized radial line slot antenna ... Design of a linearly-polarized radial line slot antenna with reflection-cancelling posts #Ken Saeki, Hideki Ueda, Jiro Hirokawa, Makoto Ando Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
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US Patent for Radial line slot antenna Patent (Patent ...
procedures for linearly polarized waveguide slots. .... 1.2 Linearly Polarized Slots. ...... Concentric Array Radial Line Slot Antenna,” IEE Proc – Micro, Ant, and. Helical antenna - Wikipedia A helical antenna is an antenna consisting of one or more conducting wires wound in the form of a helix. In most cases, directional helical antennas are mounted over a ground plane, while omnidirectional designs may not be. The feed line is connected between the bottom of the helix and the ground ... For monofilar designs the radiation is linearly polarized parallel to the helix ... Radiation Properties of a Linearly Polarized Radial Line ... - J-Stage This paper presents the design and radiation properties of a linearly polarized radial line microstrip antenna array (RL-MSAA) with U-slot circular microstrip ...
Although either horizontally or vertically polarized antennas can be used for high frequencies, horizontally polarized antennas have certain advantages and are therefore preferred. ... consisting of a large number of radials extending from the base of the tower, like spokes on a wheel, ... SLOT ANTENNA consists of a metal surface, usually a ...
US2954556A - Cross polarized dual feed - Google Patents 19 Claims. (Cl. 343-727) The present invention relates to a cross polarized dual feed for antennas, and more particularly for a parabolic reector or lens antenna. Radioengineering - April 2017, Volume 26, Number 1 [DOI: 10… This paper deals with a substrate integrated waveguide (SIW) circularly polarized rectangular ring-slot antenna with chamfered corners designed for 5.8 GHz ISM frequency band for off-body communication. Radioengineering - April 2016, Volume 25, Number 1 [DOI: 10…
Recently, a fundamental oscillation up to 1.04 THz has been observed using InGaAs/AlAs double-barrier RTDs with a slot antenna (Suzuki et al., 2010). Although output power over 100 ... Schematic of the interaction of a gold nanoparticle with linearly polarized light beam. (A) Electrons oscillate while being accompanied by a strong restoring ...
US3063049A - Linearly polarized monopulse lobing antenna having… Linearly polarized monopulse lobing antenna having cancellation of crosspolarization components in the principal lobe Download PDF US5596336A - Low profile TEM mode slot array antenna - Google…
US6218998B1 - Toroidal helical antenna - Google Patents The prior art teaches the use of edge-slot structures for creating omnidirectional vertically polarized radiation fields wherein, according to Garnier, R. C., Study of a Radio Frequency Antenna with an Edge-Slot Like Structure, Ph.D. US3623114A - Conical reflector antenna - Google Patents A conical reflector antenna is disclosed with a feed that is either a close approximation to a line source or a cylindrical structure which is electrically equivalent to a line source.