To achieve pattern reconfigurability, the approach of Yagi‐Uda configuration is employed, where the positions of the director and reflector are exchanged using PIN diodes. The proposed antenna employing six PIN diodes is designed to radiate the main beam at seven scanning angles (60°, 40°, ...
but its presence also distorts the antenna pattern, influences the noise figure, and ultimately degrades the G/T performance. This degradation contrasts sharply with the model's predictions if the feed point box was omitted. The only discernible benefit of the box is aesthetic, making the Yagi...
The Yagi antenna is a narrow-band antenna designed to work only on FM channel. It has the best gain for its sizes and a correspondingly narrow main lobe (beam). A well designed Yagi antenna as per the design given below can cover a line of site distance of even 5 KMs with just 1 w...
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Fig.2 Structure of pattern recon,gurable antenna 一般来说,控制6个偶极子天线需要12个PIN二极管开关和6个隔直电容.这里将有源振子双臂置于介质板的两面,其中一个振子臂置于接地面上,因此只需在此处加载二极管开关即可控制天线单元的工作状态,从而实现6个天线单元之间工作状态的切换.在地板的馈线后面留出了一条宽为...
27MHz and 28MHz in one Yagi beam, the first 10m/11m dualband Yagi by InnovAntennas! CB radio and 10m Ham band covered in one compact Yagi Antenna!
UHF WiFi GPS Lpda Communication Antenna for Outdoor 300-1600MHz Bi-Log Hybrid Antenna Yagi Antenna with High Gain, Find Details and Price about Yagi Antenna Outdoor Directional Antenna from UHF WiFi GPS Lpda Communication Antenna for ...
Unlike the traditional microstrip Yagi operating with the TM10 mode, all the patch elements involved in this design resonate with the TM20 mode, thus effectively enhancing the tilted beam angle toward the desired end-fire direction on an infinite ground. Finally, the proposed antenna is designed,...
7 element 144MHz Slot-Q - Slot beam antenna 3el Band Optimised Log Periodic Dipole Array 24MHz to 30MHz including MARS - by G0KSC The Best Log Periodic 21MHz to 30MHz 2 element 18MHz LFA-Q Quad Beam (1.2m) 25mm A2 stainless square U-bolt ...
FIG. 5 is an elevational view of the beam pattern obtainable with the antenna of FIG. 1. FIG. 6 is an elevational view of the beam pattern obtainable with a second alternative embodiment shown in FIG. 3. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT ...