APS/URSI 2017 | 2017 IEEE International Symposium on Antennas… 4× 2-SLOT Element FOR 30-GHZ Planar Array Antenna Realized Using SIW Cavity AND FED BY Microstrip LINE LINE-Ridge GAP Waveguide US7471247B2 - Antenna array and unit cell using an artificial… An antenna array includes a plurality of antenna unit cells, a ground plane, and at least one artificial magnetic layer AML unit cell. At least one AML unit cell is disposed between at least two adjacent ones of the antenna unit cells.
The monopole antenna is modified using microstrip transition in the feedline and block with a triangular-shape slot on each side of the circular patch to produce wider impedance bandwidth with better return loss.
Design of Dual-band Reconfigurable Substrate Integrated Waveguide ... 13 Jan 2015 ... ... Substrate Integrated Waveguide Cavity-backed Slot Antenna Array .... Microwave Lecturer by the IEEE Microwave Theory and Techniques ... Design of a Double Layer Cavity backed Slot Array Antenna in Gap ... Design of a double layer cavity backed Slot Array Antenna design in Gap ...... [27] Hopfer, S., "The Design of Ridged Waveguides," in Microwave Theory and. Comparative Investigation of Half-mode SIW Cavity and Microstrip ...
A Broadband VHF-L Band Cavity-Backed Slot Spiral Antenna - DTIC
Cavity-Backed Slot Antenna Array for the Repeater System of a Satellite Digital Multimedia Broadcasting Service Byungje Lee, Member, IEEE, Frances J. Harackiewicz, Senior Member, IEEE, Byungwoon Jung, and Myun-Joo Park Abstract—For the repeater system of the satellite digital multi-media broadcasting (DMB) service (2630 2655 MHz) requiring Compact wideband cavity-backed slot antenna | SpringerLink A wideband cavity-backed slot antenna operated in the ultra-high frequency (UHF) band is introduced. The antenna has a compact structure and low profile with the size ratio of the ground plane to the slot only 1.6:1. The measured impedance bandwidth of VSWR⩽3 achieves 85.3%, covering a frequency range from 390 MHz to 970 MHz. DESIGN OF A HIGH-GAIN CAVITY-BACKED SLOT ANTENNA WITH ... DESIGN OF A HIGH-GAIN CAVITY-BACKED SLOT ANTENNA WITH MUSHROOM CELLS AND BENT GROUND WALLS A. A. Eldek Department of Computer Engineering Jackson State University JSU Box 17098, Jackson, MS 39217-0198, USA Abstract|This paper presents a cavity backed slot antenna design with high gain and relatively small size. The large ground plane of the
Cavity-Backed Dipole Antenna for Intelligent Lock Communication
In this paper, a rectangular Cavity Backed Slot Antenna (CBSA) Model excited by a probe is investigated. The analysis is carried out using the Alternating Direction Implicit - Finite Difference Time Domain (ADIFDTD) Method which is applied to investigate its characteristics in terms of radiation patterns and power. Studies on a Cavity-Backed Slot Antenna Made of a Conductive ... Studies on a Cavity-Backed Slot Antenna Made of a Conductive Textile Bent along a Spherical Surface Masashi Komeya #, Hitoshi Shimasaki #Department of Electronics, Kyoto Institute of Technology Matsugasaki, Sakyo-ku, Kyoto, Japan 1 Komeya_masashi@yahoo.co.jp simasaski@kit.ac.jp Abstract—The reflection and radiation characteristics of a (PDF) Size Reduction of Cavity-Backed Slot Antennas A technique for reducing the dimensions of the cavity of a cavity-backed slot antenna (CBSA) is presented, which facilitates proper fabrication and integration of miniaturized slot antennas on ... Design Of A Wideband Dual-polarized Cavity Backed Slot Antenna
Gain and Bandwidth Enhancement of Ferrite-Loaded CBS Antenna ...
Cavity Backed Antenna - The DXZone Amateur Radio Internet Guide a cavity backed antenna is a practical slot antenna tipically used in microwave applications. This resource is listed under Antennas/Microwave, at Cavity Backed Antenna resource page via dxzone.com ham radio guide Spiral antenna - Wikipedia Additional spirals may be included as well, to form a multi-spiral structure. Usually the spiral is cavity-backed, that is there is a cavity of air or non-conductive material or vacuum, surrounded by conductive walls; the cavity changes the antenna pattern to a unidirectional shape. The output of the antenna is a balanced line.
Our LX series cavity backed spirals are broadband antennas designed for EMC, surveillance, direction finding, telemetry, and flush mounted airborne applications. These spirals can be used as a separate component antenna or as broadband feeds for reflector type dish antennas. Ultra-wideband Cork Substrate-Integrated-Waveguide Cavity ... The wideband SIW cavity-backed slot antenna topology depicted in Fig. 2 is adopted, making use of the bandwidth enhancement method [9]. Both d x W c L slot H slot y coax d su d sl d y B A z y x d sub brass eyelet cork copper-plated ta eta SubMiniature version A (SMA) connector Figure 2: Substrate-integrated-waveguide (SIW) cavity-backed slot ... A Cavity-Backed Broadband Circularly Polarized Slot/Strip ... It is demonstrated that the cavity-backed slot/strip loop antenna can achieve an axial ratio (d3 dB) bandwidth of 20% with good impedance matching. I. INTRODUCTION Cavity-backed slot antennas have two major advantages over cavity-backed wire antennas, such as dipole, helix, and spiral [1]. First, a slot antenna can be flush mounted