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In addition, a feed and matching configuration is proposed to enable coupling a microbolometer element to the proposed Quasi-Yagi antenna designs for performing radiation pattern measurements. A microfluidically controlled frequency-reconfigurable quasi-Yagi antenna is designed as demonstrated in Figure 1. Start Select author name Select article Request Checking You have requested to for the following authors.
This is because they have many advantages such as wide bandwidth, high gain, low cost, end-fire radiation patterns, and ease of manufacturing and integration with other microwave circuits. Settings for citing format. Various solutions can be used for this purpose.
In addition, frequency-reconfigurable filters [ 28 ], and frequency-selective surfaces [ 29 ], are also implemented using liquid metals. The length of the driven element is determined uskng parametric study to obtain a resonant frequency of 2. Journal of Electromagnetic Waves and Applications…. Figure 3 c shows the simulated peak gain for different lengths of directors L 1dir at 1.
The prototype exhibits the continuous tuning of resonant frequencies from 1. The antenna is fed using a coplanar waveguide CPW feeding structure. Calculates the article impact score on a basis of the usage in the last 24 months.
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In recent years, the printed Yagi-Uda antennas have attracted much interest with many applications in radar, millimeter-wave MMW imaging, wireless communication systems, phased arrays, and so forth.
We will notify you whenever a new paper citing the selected author's paper is updated. Simulated peak-realized gain bgoadband frequency of the quasi-yago Quasi-Yagi antenna prototypes I and II. Design of reconfigurable slot antennas. The paper also introduces a antenja antenna-feed and matching configuration that facilitates coupling a microbolometer element to the developed Quasi-Yagi antenna designs. The simulated peak gain of the antenna is 8.
The antenna resonant currents will be dissipated in the microbolometer located at the feed of the antenna causing joule heating in the microbolometer element.
The antenna peak-realized gain and radiation efficiency are calculated throughout the frequency band of interest. If you belong to a school, a public institution, or a company that subscribes to DBpia, you can view the articles free of charge via Institutional Access.
In [ 15 ], a frequency tunable Yagi antenna was presented aimed for wireless body area network applications. The detailed topology of the presented antenna with microfluidic channels is presented in Figure 1 b. To tune the resonant frequencies, the microfluidic channels are integrated into the driven element and three directors.
Design of Broadband Quasi-Yagi Antenna Using a Folded Dipole Driver
Design of dual-band bandpass filters for cognitive radio application of TVWS band. You can purchase after checking 'Yes'.
A frequency and pattern reconfigurable Yagi antenna was presented in [ 18 ]. The truncated ground plane of the antenna acts as a reflector for the transverse-electric surface wave generated by the driver.
The injected amount of liquid metal into the microfluidic channels is controlled using programmable pneumatic micropumps. To receive news and publication updates for International Journal of Antennas and Propagation, enter your email address in the box below. Compared to other W-band millimeter-wave antennas fabricated on silicon substrates, our antennas are showing relatively higher gains. Because of their high antennz, an electrooptic EO wireless millimeter-wave-lightwave signal converter is proposed using planar Yagi-Uda array antennas coupled to resonant electrodes [ 12 ].
The dimensions of three directors are identical. The top view and side view of the proposed antenna are shown in Figures 1 a and 1 brespectively. Full-text article downdloads count since The presented antenna can be suitable for various wireless communication systems, including personal communication systems PCSglobal system for mobile communications GSMand IEEE
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