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 antenna is fabricated on one side of a Duroid substrate and the microstrip feeding line with the matching network is fabricated on the opposite side of the board. The central frequency is 5.8 GHz and, by reconfiguring the matching circuit 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. Frequency Reconfigurable Circular Patch Antenna with an In this paper, a compact frequency reconfigurable circular patch antenna with an arc-shaped slot loaded in the ground layer is proposed for multiband wireless communication applications. By controlling the ON/OFF states of the five PIN diodes mounted on the arc-shaped slot, the effective length of the arc-shaped slot and the effective length of antennas current are changed, and accordingly six Frequency Reconfigurable Circular Patch Antenna with an
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 use of slot antenna structure to design various reconfigurable antennas has been studied in many excellent papers[11-14], where PIN diodes, varactor diodes, or FET components were used to change the effective electrical length of the slot or to manipulate the current distributions around the... A frequency and pattern reconfigurable microstrip … PIN diodes loaded across the slot-ring are employed to switch the pattern in three directions.@article{Li2014AFA, title={A frequency and pattern reconfigurable microstrip antenna using PIN diodes}, author={Wen Tao Li and Zhen Xin Ren and Xiao Wei Shi and Yongqiang Hei}, journal={2014... Design of Frequency Reconfigurable Antenna These reconfigurable antenna techniques are divided with a different classification method and explain whichever es-tablished on the physical changes of the reconfigurable antenna radiating parts, or on the integration of varactors, photoconductive com-ponents, PIN diodes, or on the function of...
so that there is no coupling between these two polarizations. The switching speed of the PIN diodes is slower than the MEMS-based switches. Nanbo Jin designed the patch antenna [2] with switchable slot (PASS).This concept is implemented to design a novel reconfigurable antenna with both frequency and polarization diversities.
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... Pattern and Frequency Reconfigurable Annular Slot …
Design and analysis of a hexa-band frequency ...
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...
Abstract - A reconfigurable microstrip patch antenna with RF pin diode switches is implemented for dual band of 2.4 GHz and 5.6 GHz WLAN Software Defined Radio (SDR) applications. For the dual band SDR system, the use of a single antenna with a wide bandwidth to cover both of the bands can...
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
in reconfigurable antenna has emphasized the use of pin diodes. By referring to [19][20][21][22][23][24][25], different types of antenna had employed pin diodes in the antenna structure to attain diversity in radiation pattern. This paper proposed an annular slot antenna operating in DC mode with a monopole radiation which offers bigger room Design and Analysis of a Frequency Reconfigurable Microstrip ... the other is designed using PIN diodes to enable switching between two different frequency bands. Silicon made optical switches have been used by some researchers to construct frequency reconfigurable antennas [24]. Some compound reconfigurable antennas using PIN diodes [25] and optical switches [26] have also been reported in the past. Investigations on Reconfigurable Dual Frequency Microstrip ...