Mar 26, 2013 ... Several dual-band slot antenna designs with good characteristics were ... with 90 ◦ phase difference and CP radiation will be realized. The design .... Chen, J.-S., “ Dual-frequency annular-ring slot antennas fed by. CPW feed ... Axial Ratio and Gain Enhancement of a Circular-Ring Slot Antenna ... Mar 28, 2019 ... size, lightweight, and simple fabrication method make CP antennas suitable for ... Microstrip-line-fed ring slot antennas have lower bandwidth and gain, such as the ..... The measured E-plane far-field radiation patterns for 1.8 GHz, 2 GHz, 2.2 .... circular polarization annular ring slot antenna design for RFID. Dual-Band Annular-Ring Microstrip Patch Antenna for Satellite ... Though the design bandwidth may be enough to support GPS applications or other ... The CP annular-ring patch antenna with two proximity-coupled L-probe ... shift, thus allowing improvement of the axial ratio in the direction of maximum radiation. ... microstrip line- fed LP ARSA where the width of the ring slot is only 22.2% ...
2012-8-3 · A dual-band CP antenna using single layer patch has been reported in [4], [5]. In [4], an antenna consists of a circular patch and a narrow annular ring is designed. This antenna achieves its CP operation by an equal cross slot embedded on the circular patch. The design of antenna in [5] consists of a small circular patch surrounded by two
Jan 1, 2008 ... Abstract—A new design of a dual-frequency dual circularly-po- larized slot antenna is ... obtained by four unequal linear slots which augment the annular slot. Experimental ... In [1], a typical circular-ring slot antenna utilizing a stripline hybrid ... The right-hand CP and left-hand CP performance is realized. A quadrilateral shape broadband antenna for wireless application ... The antenna also exhibits good performance of circular polarization (CP) radiation with lower 3d B AR beamwidth of ± 60°. ... A novel design of a microstrip -fed shorted square-ring slot antenna for circular ... Lin Y.-F., , Chen H.-M., and Lin S.-C., A new coupling mechanism for circularly polarized annular-ring patch antenna, ... Broadbanding of circularly polarized patch antenna by waveguided ... Design of bandwidth-enhanced circularly polarized (CP) patch antenna ... theoretically little influence upon the radiation patterns of patch antennas. .... The occurrence of such magnetic response is mainly due to the annular slot ..... “ Electromagnetic resonances in individual and coupled split-ring resonators,” J. Appl. Phys.
Circularly polarized co-designed filtering annular slot ...
Dual-Band Annular-Ring Microstrip Patch Antenna for The single-feed CP ring antennas using the coupled feeding method have been investigated in [4], but the 3-dB ARBW is less than 2%. For the dual-feed CP antenna in [5], the ARBW is larger than 2% at both bands. The CP annular-ring patch antenna with two proximity-coupled L-probe feeds [6] obtains a 3-dB ARBW of larger than 30%.
Printed ring slot antenna for circular polarization
DESIGN OF RECONFIGURABLE ANNULAR SLOT ANTENNA (ASA) FOR WIRELESS COMMUNICATIONS / WLAN APPLICATIONS Radiation patterns of annular slots when n=0 and W s<< ... due to the 3 λs/2 ring circumference, creates a null in the radiation pattern in the direction of the microstrip feed line. To change the direction of the null, short circuits have ... INTEGRATED COMPACT CIRCULAR POLARIZATION ANNULAR … ANNULAR RING SLOT ANTENNA DESIGN FOR RFID READER Jun Lin Zhang and Xiao Qing Yang* College of Electronics and Information Engineering, Sichuan Univer-sity, Chengdu 610065, P. R. China Abstract|An integrated compact circular-polarized annular ring slot antenna is proposed in this paper. It consists of an annular ring slot Annular Slot Loaded High-Impedance Ground Plane - ECE/CIS A conventional slot ring without a grounded dielectric will radiate at a frequency determined by the guided wavelength of the slot. That is, an annular slot antenna will radiate its fundamental mode at a slot radius of [2] Annular Slot Loaded High-Impedance Ground Plane A Compact Annular Ring Microstrip Antenna for WSN Applications A compact annular ring microstrip antenna was proposed for a wireless sensor network (WSN) application in the 2.4 GHz band. In this paper the major considerations of the conformal antenna design were the compact size and the impact on antenna's performance of a steel installation base.
Simulation of Two-Concentric Ring Microstrip Patch …
Jan 1, 2008 ... Abstract—A new design of a dual-frequency dual circularly-po- larized slot antenna is ... obtained by four unequal linear slots which augment the annular slot. Experimental ... In [1], a typical circular-ring slot antenna utilizing a stripline hybrid ... The right-hand CP and left-hand CP performance is realized. Broadbanding of circularly polarized patch antenna by waveguided ... Design of bandwidth-enhanced circularly polarized (CP) patch antenna ... theoretically little influence upon the radiation patterns of patch antennas. .... The occurrence of such magnetic response is mainly due to the annular slot ..... “Electromagnetic resonances in individual and coupled split-ring resonators,” J. Appl. Phys.
2016-1-22 · Stacked Patch Triple-band Dual-polarized Antenna for Handheld Terminals ESA/ESTEC, Noordwijk, The Netherlands fundamental mode while the annular ring patch used to generate the DCS operates at the TM 21 mode. The ... (CP) broadside radiation pattern. The upper patch gives a Circularly Polarized Microstrip Antenna - Concordia … 2011-4-5 · Circularly Polarized Microstrip Antenna Marwa Shakeeb A Thesis In The Department of Electrical and Computer Engineering Concordia University Annular‐ring slot antenna designs with circular ... The design of a microstrip‐fed annular‐ring slot antenna (ARSA) with circular polarization (CP) radiation is initially studied. To obtain CP radiation with broad 3‐dB axial ratio (AR) bandwidth that can cover the WiMAX 2.3 GHz (2305–2320 MHz, 2345–2360 MHz) and WLAN 2.4 GHz (2400–2480 MHz) bands, a novel technique of extending an inverted L‐shaped slot from the bottom section of ...