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. 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 Printed ring slot antenna for circular polarization - IEEE ... Abstract: A new design of a microstrip-line-fed circularly polarized printed ring slot antenna is proposed. Circular polarization (CP) radiation of the proposed design is achieved by introducing proper asymmetry in the ring slot structure and feeding the ring slot using a microstrip line at 45/spl deg/ from the introduced asymmetry.
Abstract: A microstrip-line fed annular-ring slot antenna with circularly polarized (CP) radiation is initially studied. To achieve harmonic suppression for this antenna, the technique of loading a defected ground structure into the ring slot is proposed.
Dual-Port Dual-Wideband Annular Slot Antenna with Stable ... Stacked patches have been used in several antenna designs [2 ]—[5 ... annular slot antenna ... two concentric slot-rings and stable radiation pattern ... Dual-Band Annular-Ring Microstrip Patch Antenna for ... INDEX TERMS: Broadband feed network, circularly polarized (CP), Annular Ring Slot Antenna (ARSA), dual-band patch antenna, ... radiation efficiency, ... Shorted Annular Slot Antenna (ASA) Matched at Three ... Shorted Annular Slot Antenna ... Matched at Three Different Frequencies ... The placement of a short along the slot circumference rotates the radiation pattern on ... Design of Stacked Microstrip Dual-band Circular Polarized ...
METALLIC CAVITY ANTENNA FED WITH AN L-SHAPED PROBE
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 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. 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 Printed ring slot antenna for circular polarization - IEEE ...
DUAL-BAND BEAM SCANNING REFLECTARRAYS AND …
Jul 28, 2016 ... The geometry of annular ring slot CP antenna … Babinet's ... In this paper, the design of annular ring slot antenna which. can be used for CP ... As a result, the radiation resistance of ring slot is calculated as. 2. /NZZ slotr =. (4). A Novel Concentric Annular-Ring Slot Dual-Band Circularly ... - Hindawi
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.
Abstract— In this paper the design and analysis of annular ring slot microstrip antenna is presented. The design frequency of antenna is 2.1 GHz and used substrate for the fabrication of the proposed antenna is FR4. After simulation and testing return losses of about -14 dB, -14 dB, -19 dB and -10 dB Dual-Band Circularly Polarized Cavity-Backed Annular Slot
Design of ultra wideband trapezoidal shape slot antenna ... A number of slot antenna designs for CP have appeared in the published literature. In , a halberd shaped tuning stub was used to excite a square slot and a CP band of 1575 MHz (3.81%) was achieved. A stair shaped slot antenna was proposed in that gave a 31.2% axial ratio (AR) bandwidth from 2.30 to 3.15 GHz. A square slot antenna with lightening-shaped feedline and inverted-L grounded strips ... Tri-band circularly polarized annular slot antenna for GPS ... antenna is with a complex complicated structure and big frequency ratio. Most of multi-band CP antennas presented in [11–22] are dual-band CP antennas.In this paper, a tri-band CP annular slot antenna is designed and measured. The antenna consists of two nonconcentric annular slots with an L-shaped series step impedance feed configuration ...