heena1.pdf - Download as PDF File (.pdf), Text File (.txt) or read online. US4751513A - Light controlled antennas - Google Patents When diodes 830 and 880 are nonconductive, antenna 808 includes as a radiating portion only conductor 810, which resonates at a frequency established by its dimension when energized from feed conductor 898. A New Reconfigurable Antenna based on a Rotating Feed In [2] a series of pin diodes switches constitute the fundamental structure of the antenna. The tuning of the antenna is realized by literally changing its electrical length, which is controlled by the bias voltage of the solid state shunt … US3854140A - Circularly polarized phased antenna array - Google…
Wide-band planar slot antennas are realizable using wide-slot, fractal-shaped slot or substrate removal under the slot Reconfigurable slot antennas with PIN diodes, FETs or MEMS switches with narrow Fractional Bandwidth (FBW) have been demonstrated in the literatures Wide-band reconfigurable antenna using double slot-ring is pro-posed
Reconfigurable Antennas Research Papers - Academia.edu Using a pair of PIN diodes, one along the microstrip line and the other along the L-shaped slot, and by switching the PIN diodes, horizontal or vertical polarization can be obtained. Antenna Research Papers - Academia.edu Using a pair of PIN diodes, one along the microstrip line and the other along the L-shaped slot, and by switching the PIN diode s, horizontal or vertical polarization can be obtained.
A reconfigurable antenna modifies the antenna’s pattern, polarization, or frequency/bandwidth in some desirable fash-ion. For instance, a reconfigurable antenna might steer or place a null in an antenna’s pattern, switch from right-hand circularly polarized to left-hand circularly polarized, or move...
Mar 02, 2014 · Frequency reconfigurable antenna using PIN diodes Abstract: A compact frequency reconfigurable double slot antenna for wireless communication is presented. The proposed antenna consists of double slot with six RF PIN diodes placed at different position on the ground plane to achieve frequency reconfigurability. Frequency reconfigurable antenna using PIN diodes A compact frequency reconfigurable double slot antenna for wireless communication is presented. The proposed antenna consists of double slot with six RF PIN diodes placed at different position on Pattern and frequency reconfigurable annular slot antenna This paper presents the use of pin diodes to reconfigure the impedance match and modify the radiation pattern of an annular slot antenna (ASA). The planar Pattern and frequency reconfigurable annular slot antenna using PIN diodes - IEEE Journals & Magazine 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.
pattern reconfigurable antenna using annular slot antenna operating in low frequency. A shorting pin is inserted to ... Keywords—pin diodes; annular slot antenna; ... Single-, Dual- and Triple-band Frequency Reconfigurable ... ... Dual- and Triple-band Frequency Reconfigurable Antenna ... The antenna incorporates three pairs of pin-diodes which are ... Frequency reconfigurable antenna, slot ... A Study of Reconfigurable Multiband Antenna for Wireless ... A Study of Reconfigurable Multiband Antenna for ... PIN diodes, photoconductive ... An UWB Frequency Reconfigurable Antenna by Using
Furthermore, the directional pattern of the antenna is reconfigurable and the working mode can be switched among omnidirectional radiation, directional radiation andHU, Binjie 胡斌杰 ZHANG, Jiale 张家乐. Title: Reconfigurable waveguide mixing slot antenna based on s-pin diode.
A Frequency Reconfigurable Antenna loaded with…
A reactively controlled directive antenna array that has a single central monopole or dipole as a radiating element excited directly by a feed system. A plurality of parasitic elements surround the radiating element and through changing … US6642889B1 - Asymmetric-element reflect array antenna - Google… A reflect array antenna comprises a non-electrically conductive substrate with an array of antenna elements supported on the substrate. Each antenna element comprises a plurality of patch radiating elements arranged in rows and columns. US10186750B2 - Radio frequency antenna array with spacing…