Microstrip‐line‐fed printed shorted ring‐slot antennas for Aug 27, 2001 · Designs of circularly polarized printed shorted annual and square ring‐slot antennas are proposed. Circular polarization (CP) radiation of the shorted ring‐slot antennas is achieved by selecting a proper length of the shorted section in the ring slot, which is about 3.9 and 8% of the mean circumference of annular and square ring slots, respectively, and feeding the ring slot using a DESIGN OF RECONFIGURABLE ANNULAR SLOT ANTENNA … 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 ...
DESIGN OF CPW-FED DUAL-BAND CIRCULARLY- …
A broadband circularly polarized antenna of square-ring ... Examples of RFID-reader antennas include the patch antenna fed by a Wilkinson power divider and the annular-ring slot antenna with a slot-line feed . However, these antennas are too large, and some single-feed single-element patch antennas usually have a narrow circular-polarized (CP) bandwidth , , , . Annular‐ring slot antenna designs with circular polarization radiation ... Nov 6, 2014 ... The design of a microstrip‐fed annular‐ring slot antenna (ARSA) with circular polarization (CP) radiation is initially studied. To obtain CP ...
DESIGN AND INVESTIGATION OF A DUAL-BAND ANNULAR RING SLOT ...
In this paper, a novel concentric annular-ring slot dual-band CP microstrip antenna that operates at ISM band (2.45 GHz) and 5G band (3.5 GHz) is proposed and investigated. The antenna is a kind of single-layer slot antenna. There are two concentric ring slots of different size on the ground to generate dual-band radiation. DESIGN AND INVESTIGATION OF A DUAL-BAND ANNULAR RING SLOT ... analyze the annular ring slot antenna for the TM modes [20]. In this analysis, the feeding line is not considered. Here, we only consider the TM0m modes in the annular ring slot antenna, since only the TM0m modes can produce a monopole like radiation pattern. For the TM0m modes, the fleld inside the structure must be symmetric about the z axis. Microstrip‐line‐fed printed shorted ring‐slot antennas for ... Designs of circularly polarized printed shorted annual and square ring‐slot antennas are proposed. Circular polarization (CP) radiation of the shorted ring‐slot antennas is achieved by selecting a proper length of the shorted section in the ring slot, which is about 3.9 and 8% of the mean circumference of annular and square ring slots, respectively, and feeding the ring slot using a ... Circularly polarized co-designed filtering annular slot ... In this paper, a compact circularly polarized co-designed filtering annular slot antenna (ASA) is proposed. The antenna comprises a distributed capacitor-loaded annular slot radiator to produce circular polarization (CP) radiation, which is seamlessly integrated with a microstripline bandpass filter (BPF) to enhance out-of-CP-band suppression.
In this paper, a novel concentric annular-ring slot dual-band CP microstrip antenna that operates at ISM band (2.45 GHz) and 5G band (3.5 GHz) is proposed and investigated. The antenna is a kind of single-layer slot antenna. There are two concentric ring slots of different size on the ground to generate dual-band radiation.
SINGLE-FEED CIRCULARLY POLARIZED ANNULAR SLOT ... 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% ...
Dual-Band Circularly Polarized Cavity-Backed Annular Slot
Jun 15, 2018 ... development of miniaturized antenna designs. Annular ring patch ... probe-fed annular-ring microstrip patch antennas are presented. In order to ... placing a cross-slot into the ground plane. ... Good circularly polarized properties and wide CP bandwidths are obtained for ... radiation is obtained. Dual band ... A Novel Design on Broadband Circularly Polarized Slot Antenna In this paper, a novel broadband circularly polarized (CP) slot antenna is ... two quarter annular rings fabricated cornerways in the square slot is designed and a ... On the miniaturization of microstrip line-fed slot antenna using ... - Core
antenna | Techn. Activities 2016 2016 APCAP (The 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation) Venue: Grand Hi-Lai HotelKaohsiung, Taiwan Date: 26-29 Jul, 2016. A Circularly Polarized Annular-ring Patch Antenna with a 2010-10-10 · a circularly polarized annular-ring patch antenna embedded in a particular EBG structure and with an unequal cross-slot in the ground plane is studied and presented. This recently proposed annular-ring antenna structure has been shown to be significantly smaller than conventional annular-ring patch antennas, even on standard groundplanes [10]. Design and Analysis of Circular Ring Microstrip Antenna 2012-9-11 · Design and Analysis of Circular Ring Microstrip Antenna Rajesh Kumar1, Dr. D. C. Dhubkarya2. Abstract-Like many forms of microstrip patches, the annular ring has received considerable attention. When operated in its fundamental (TM ) mode, this printed antenna is smaller than its rectangular or circular counterparts. The annular ring may