3/31/2022

Radial Line Slot Antenna Plasma

Admittance calculations for plasma layers of vari­ ous thicknesses h are illustrated in figures 5 and 6. The slot conductance G and the radiation conduct­ ance G, decrease with increasing layer thicknesses h, 'while the slot susceptance is almost constant for h/'A O.l. For plasma layer of h/'A 0.3, the con­. The plasma produced by a radial line slot antenna (RLSA) source is discussed based on a simulation using a multiphysicscoupled 2Dfluid model.Thetechnological aspects in asilicon nitride chemical vapor deposition (CVD) process using a disilane and ammonia mixture are. RLSA Plasma Source ●Radial Line Slot Antenna (RLSA) 2.45GHz source developed for various applications ●High Density and low electron temperature Ed Korczynski, BetaSights www.betasights.net NCCAVS/Plasma Applications Group SEMICON/West 2010 July 15, 2010 15. Radial Line Slot Antenna (RLSA) DBS. Reception.DBS: Direct Broadcast from Satellite. DBS Reception Antenna High Efficiency, 12GHz, 34dBi, Antenna Efficiency 85% （in practical use）. 30cm Diameter Order Large Aperture Plasma Equipment (8.3GHz) （in practical use）.

High Efficiency, 35dBi(60GHz 64%, 76GHz 56%)
Alternating-phase Feed


Single-Layer Slotted Waveguide Array

comments on slotted waveguide arrays
comments on T-junctions

for Entrance Radio Relay

comments on slotted waveguide arrays
comments on T-junctions

FWA*

*FWA: Fixed Wireless Access

FWA Antenna
(26GHz, Alternating-phase)
（in practical use）


collaboration with Japan Radio Co., Ltd. (JRC)

comments on slotted waveguide arrays
comments on T-junctions

[Related Link]
JRC 26GHz FWA TECHNOLOGY

Waveguide Crossed Slot Array
11.85GHz, 26.5dBi, Circularly Polarized Wave
Leaky-wave excitation, Beam-Tilting Angle: 52deg
（in practical use）


collaboration with Nippon Steel Corporation

comments on crossed-slot arrays
comments on pi-junctions

Feed Circuits
Slot

Slotted Parallel Plate Post-Wall Waveguide Array

PCB* Technology
Metalized via holes in PCB for waveguide structures
Etching for slots

*PCB: Print Circuit Board

High efficiency, (30dBi, 45%), (35dBi, 40%)
RADAR
Side lobe supression by Taylor distribution 77GHz,
-22dB (E-plane or H-plane), -18dB (E and H planes)
Plasma


A Beam Switching Slot Array with a 4-Way Butler Matrix Installed in a Single Layer Post-Wall Waveguide （26GHz）

Convertors
Connection between millimeter-wave RF circuits and antennas (waveguide feed, planar circuit feed)

Radial Line Slot Antenna Plasma Cutter

Electromagnetic Theory

Radial Line Slot Antenna Plasma Tv

Analysis of scattering and diffraction phanomena by geometrical optics (GO)

Fictitious Penetrating Rays in PO


Fictitious Penetrating Rays at a Corner of a Reflector

Equivalence of physical optics (PO) and aperture field integration method (AFIM)
Mathematical derivation of modified edge representation (MER)

Visualization of high frequency diffraction based on physical optics and stationary phase (SP) method (Animation of Circular Disk: 212K, Animation of Square Plate: 119K)


Visualization of scatterd field from a square plate

Radiation pattern analysis of antennas on a finite ground plane


RLSA with finite ground plane

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