RADIAL LINE SLOT ANTENNAS FED BY A ... - 東京農工大学 A radial line slot antenna (RLSA) was a high gain, high efficiency and low-cost planar antenna, which was conventionally proposed for DBS reception at 12 GHz band [1]. In the conventional RLSA, a radial waveguide was fed by a coaxial feeder. In millimeter wave band, A Design of Compact Radial Line Slot Array (RLSA) Antennas ... A Design of Compact Radial Line Slot Array (RLSA) Antennas for Wi-Fi Market Needs Teddy Purnamirza1, *, Donny Kristanto 1,andImranM.BinIbrahim2 Abstract—This paper proposes a compact Radial Line Slot Array (RLSA) antenna for 5.8GHz Wi-Fi devices, which meets market needs. Various small RLSA antenna models with radius of 140mm, were PERFORMANCE STUDIES OF RADIAL LINE SLOT ARRAY (RLSA ... 102 Recent Developments in Small Size Antenna 9 PERFORMANCE STUDIES OF RADIAL LINE SLOT ARRAY (RLSA) ANTENNA AT 5.8 GHz ON DIFFERENT MATERIALS Omar Abdul Aziz Tharek Abdul Rahman 9.1 INTRODUCTION The type of dielectric material used as radial cavity in the Radial Line Slot Array (RLSA) antenna structure would influence the
A radial line slot antenna (RLSA) is a planar antenna for DBS reception. It is a kind of slotted waveguide array. The conductor losses are so small that high efficiency is expected irrespective of ...
Characteristics of small-aperture, single-layered, radial ... A radial-line slot antenna (RLSA) is a high-efficiency planar array. A double-layered radial line and uniform slot length have been adopted in conventional RLSAs. A single-layered RLSA is much simpler in structure, but the slot length must be varied to synthesise uniform aperture illumination. Radial line slot array (RLSA) antenna design for point to ... A new type of linearly polarized Radial Line Slot Array (RLSA) antenna developed by FR-4 substrate is proposed for outdoor WLAN point to point application. The WLAN is based on the IEEE 802.1 la standard and the operating frequency range is the upper UNII band (5.725-5.875) GHz. Characteristics of large-diameter plasma using a radial-line ... Characteristics of the surface-wave plasma generated by a radial-line slot antenna (RLSA) have been studied by both direct plasma probe measurements and numerical simulations.
A STABLE DESIGN OF COAXIAL ADAPTOR FOR RADIAL LINE SLOT ANTENNA By O. Beheshti-Zavareh and M. Hakkak. Full Article PDF (759 KB) Abstract: A new design of feed for radial line slot antenna (RLSA) is presented. For better impedance match to the waveguide the effect of the various feed parameters is analyzed and their design sensitivity is studied.
Near-Field Distribution of Radial Line Slot Antenna for ... the antenna aperture in this case. A radial line slot antenna (RLSA) for surface-wave-coupled plasma (SWP) is a promising candidate to this end.
Radial line slot array (RLSA) antenna design for point to ...
The antenna's radiating surface is designed using a radial line slot array (RLSA) arrangement, which is fed from an aperture coupled structure. This novel feeding structure for an RLSA antenna incorporates PIN diode switches which are integrated with the feed line structure to enable the various outcomes of the radiation patterns. Low-cost monopulse radial line slot antenna - Antennas and ... A single-layer radial line slot antenna (RLSA) for the same application (receiving DBS system) was first proposed in [7], where the length of the slots is calculated to get uniform BANDWIDTH ENHANCED AND SIDELOBES LEVEL REDUCED RADIAL LINE ... design of narrow beam antenna with an appreciable reduced level of sidelobes and sufficient bandwidth is paramount for 5G operation. Hence Radial Line Slot Array (RLSA) antenna which has inherent narrow beam characteristics becomes a potential candidate antenna for this application. The use of RLSA for microwave and millimeter Reflection coefficient calculation of a feeder structure ... Indexing Terms : Radial Line Slot Antenna, Direct Broadcast from a Satellite, Tilting Rod 1. Introduction RLSA(Radial line slot antenna) for the DBS(Direct Broadcast from a Satellite) reception in the 12GHz band is in commercial use in Japan. Its flat shape is so solid and so small compared with the planar antenna using microstrip.
the antenna aperture in this case. A radial line slot antenna (RLSA) for surface-wave-coupled plasma (SWP) is a promising candidate to this end. A novel slot arrangement in the aperture, consisting of densely arrayed transverse slots, was fabricated and tested.
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DIAGNOSIS TECHNIQUES FOR PLANAR ANTENNAS USING ITERATIVE ... source reconstruction of a K-band radial line slot antenna (RLSA), and measured results are presented, compared with the designed data. The development of radial line slot array antenna for ... Theoretical slot design analysis for a single layered RLSA antenna is performed (Ando et al. 1988) with reference to the slot geometry shown in figure 2, which