[Moved]: Pattern and Frequency Reconfigurable Annular … Hi normally we use PIN diodes for pattern reconfigurable antenna. My question is that as the current in antenna is ac how does the PIN diode works.Analog Design. RF, Microwave, Antennas and Optics. [Moved]: Pattern and Frequency Reconfigurable Annular Slot Antenna Using PIN diode. Reconfigurable Antennas of Wide Tuning Ranges and... |… using wide-band reconfigurable and sharp filters. Therefore, multiband can be achieved while covered range is still wide.An UWB horn antenna was used to compare S21 towards the S-UWB antenna itself with and without the frequency tunable matching network as the wideband and narrowband...
FRASA - Frequency-Reconfigurable Annular Slot Antenna
Frequency Reconfigurable Antenna Using Metasurface for Satellite Application 1N. Rajakanya , 2B. Kokila, ... atop a simple patch/slot antenna, not only the realized gain and return-loss bandwidth (S 11 ... Thus the simulation results of the frequency reconfigurable antenna using meta surface has been designed and Frequency‐reconfigurable slot antenna with wide‐tuning ... A frequency‐reconfigurable slot antenna designed using metasurface (MS) is proposed in this paper. The frequency‐reconfigurable metasurfaced (FRMS) antenna is composed of a simple slot antenna and a MS, both having a circular shape with the same diameter of 50 mm (equivalent to 0.5λ 0 where λ 0 is the operating wavelength in free space) and implemented using planar technology. Design of Frequency-and Polarization-Reconfigurable ... A frequency- and polarization-reconfigurable antenna composed of a metasurface, a planar slot antenna, and a metallic reflector is proposed in this letter. Design of Frequency-and Polarization-Reconfigurable Antenna Based on the Polarization Conversion Metasurface - IEEE Journals & Magazine Polarization reconfigurable slot antenna for 5.8 GHz ... 1. Introduction. Circular polarization reconfigurable antennas have drawn lots of attention in recent years , , since they have both the merits of circular polarization antenna (capable of mitigating the multipath effect and flexibility in the orientation of the transmitting and receiving antennas , ) and reconfigurable antenna (satisfy the requirements for increased functionality within a ...
A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. In order to provide a dynamic response, reconfigurable antennas integrate an inner mechanism (such as RF switches, varactors, mechanical actuators or tunable materials) that enable the intentional redistribution of the RF currents over the ...
Pattern and Frequency Reconfigurable Annular Slot Antenna ... This antenna is the first step toward more mature compact reconfigurable slot antennas both in frequency and Fig. 19. Measured radiation patterns in x-y plane for the null reconfigurable radiation pattern using pin diodes or RF MEMS switches. design at f = 5:65 GHz. A Reconfigurable Wideband and Multiband Antenna ... - IEEE ... Coupling between the two patch elements plays a major role for achieving the wide bandwidth and the effects of mutual coupling between the patch elements are also studied. Index Terms—C-slot, cognitive radio, patch antenna, reconfigurable antenna, slot antenna, small antenna, switched antenna, wideband antenna. I. INTRODUCTION P Design and Characterization of a Miniaturized Antenna Based ...
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 53, NO. 2, FEBRUARY 2005 645 Design of Reconfigurable Slot Antennas Dimitrios Peroulis, Member, IEEE, Kamal Sarabandi, Fellow, IEEE, and Linda P. B. Katehi, Fellow, IEEE Abstract—In this paper the design of a compact, efficient and Signal propagation over large distances and in urban and electronically tunable antenna is presented.
A Study of Reconfigurable Multiband Antenna for Wireless Application ... An UWB Frequency Reconfigurable Antenna by Using ... Mohammad M. proposed a Reconfigurable Antenna with Extended U-Slot used as a Switchable Polarization for Wireless Applications. In IEEE Antennas and Propagation S.W. Cheung - Editorial Board - Scientific Research Publishing S.W. Cheung serves as the editorial board member in Open Journal of Antennas and Propagation (SCIRP). I have done a seminar on frequency reconfigurable antenna ...
metasurface antenna can provide the desired Earth coverage by a mechanical azimuth scanning with a simple turn-table mechanism. Also, metasurface antennas have characteristics suitable for ground terminals. Since their light weight and low profile, they are easily pointing antennas with medium-high gain.
This paper deals with a substrate integrated waveguide (SIW) circularly polarized rectangular ring-slot antenna with chamfered corners designed for 5.8 GHz ISM frequency band for off-body communication. Radioengineering - September 2016, Volume 25, Number 3 [DOI: 10… The proposed antenna has a simple configuration and compact size of 17 × 14 mm2. To make the band-notches, three methods (methods of slot antenna, parasitic patches and backplane structure) are used. Broadband Metamaterials in Electromagnetics | Metamaterial… Broadband Metamaterials in Electromagnetics - Ebook download as PDF File (.pdf), Text File (.txt) or read book online. Metamaterials are artificial electromagnetic or optical media whose bulk (macroscopic) properties are controlled by … Paper Authors
A planar polarization-reconfigurable metasurfaced antenna (PRMS) designed using metasurface (MS) is proposed. The PRMS antenna consists of a planar MS placed atop of and in direct contact with a planar slot antenna, both having a circular shape with a diameter of 78 mm (0.9 $\lambda_{0}$ ), making it compact and low profile. Single-, Dual- and Triple-band Frequency Reconfigurable Antenna The antenna has applications in Bluetooth, WiMAX, and WLAN systems. This paper proposes a new design for a frequency reconfigurable multi-band antenna based around a slot di-pole. Three pairs of pin-diode switches are placed across, the dipole arms. It is possible to reconfigure the operating frequency of the antenna, by altering the states of the METASURFACE ANTENNAS FOR USER TERMINAL metasurface antenna can provide the desired Earth coverage by a mechanical azimuth scanning with a simple turn-table mechanism. Also, metasurface antennas have characteristics suitable for ground terminals. Since their light weight and low profile, they are easily pointing antennas with medium-high gain.