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Admin
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Everything posted by Admin
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Your file is completely wrong...!!!
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Okay, now post the images with the results obtained...!!!
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Okay, then post the results...!!!
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I think it's easier to post the CST file....!!!
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,,,but you need to show the positioning of the power point and the thickness of the PCB...!!!
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,,,hi buddy...!!! welcome to this forum...!!! if you can give some dimensions it would be better! Gerber files are from CST-Studio...??? And why don't you write in normal letters?
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Radiation patterns and gain measurements on 1.0, 1.5, and 2.0 lambda backfire Yagi antennas are given. The backfire antenna was tested for two dipole feed locations, and variations in the diameters of the two planar reflectors forming the backfire cavity. The optimum dimensions of the three test antennas are tabulated. The frequency bandwidth of the backfire antenna is limited to several percent due to impedance matching. The backfire antenna should find application in broadside arrays where conventional endfire antennas are presently used. 19680012807.pdf
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The antenna is fed by a dipole at the midpoint between the two reflectors and yields useful gains of 10-15 db.
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ONLINE storeEFPV specializes in the sale of high-quality antennas and accessories for FPV drones, video and radio systems... https://efpv.in.ua/antena-batwing This antenna is an indispensable tool for the military, special services and organizations operating in extreme conditions where maximum reliability and efficiency of wireless communication is required. Frequency range 750-1020 MHz Beam angle 60° Connector SMA-F Material aluminum Gain 10 dBi Size 355*235*110 mm Weight 556 g
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,,,a variety of FPV antennas, including my Batwing antenna model... https://efpv.in.ua/antena-batwing Specifications Frequency range 1800-2800 MHz Beam angle 50° Connector SMA-F Material aluminum Gain 10 dBi Size 144*99*48 mm Weight 115 g
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Maybe this suits you...!!!
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What does "11 degrees" mean to you?, is it somehow angular width? ,,,,anyway, you can choose from here...
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"I think this is a lie."
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Product detailed description SMA-male 11dB circular polarization antenna The 11dBi circularly polarized antenna is a High-gain circularly polarized directional antenna. It is suitable for low-altitude crossing and long-distance flying. In actual use, adjust the inclination angle of the panel antenna appropriately. In the state of flying with the head down, the antenna is perpendicular to the ground. Specifications: Frequency: 5.6G Gain: 11dBi Bandwidth: 5500-5800MHz Size: 82mm x 42mm x 24mm Package includes: 1x SMA-male 11dB circular polarization
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Because this site is not completed in real operation, it is recommended to replace the current Theme2(Default) with Default, as you can see in the picture below... Default theme it looks like this...
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Sukesh,I don't understand what you want....!!!! ,,,you want a 4-core sector antenna like this...???
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,,,here Harry36 did some simulations....
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,,,okay,thanks buddy....!!!
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4,5-5.4 GHz ; 21 dBi....all dimensions...!!!!
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Aksonx2, I see you have this MAPLE antenna, can you give some dimensions....???
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A method to improve the gain of axial-mode helical antenna is proposed. This method involves a parasitical circular metal disk,which is installed on the front of general axial-mode helical antenna and is apart from the helical line. A circular current whose phase lags behind that of helical line current appears,which brings a more concentrated radiation field. Consequently,the antenna gain is improved, Based on the simulation results,an antenna array model fed independently is proposed.This model gives an excellent explanation of the radiation characteristic of helical antenna, Both the simulation and experiment results show that for obtaining the same gain,the antenna length in this new method is only 71% of that in traditional helical antenna.The reduction of antenna length favors the miniaturisation of antenna. In addition, this method has a little effect on the bandwidth of antenna, so it can be widely used in the design of helical antenna element and array.
