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Antennas are essential wherever wireless communication required. They are the indispensable link between the contained signal and the “ether”. CST provides a variety of tools for each stage of the antenna design flow to study and improve your design. Antennas are used in a vast variety of applications, and thus take come in a vast variety of form factors and radiation mechanisms. The range of simulation methods in CST MWS allows the engineer to choose the best technique for each application. The transient solver could be best for wideband or planar antennas, the frequency domain solver may be more suitable for electrically small antennas, while the integral equation solver can efficiently simulate electrically large or wire antennas. Antennas never operate in isolation, but are attached to a feed network. CST DESIGN STUDIO™ (CST DS) allows the hybrid co-simulation of the effect of an attached circuit on the antenna performance. Installation of an antenna in a device or on a platform makes its analysis even more complex. The System Assembly and Modelling framework in CST DS allows the user to set up coupled simulations which can combine different solvers automatically by making use of field sources. Finally, powerful automated post-processing allows you to extract every magnitude of interest for an antenna designer – nearfield plots, SAR, phase center, directivity or farfield gain for single antennas or arrays - and to process those data further for use in parameter sweeps or optimizations in order to improve the performance of your design. Few pictures started...

Panel antenna for amplifying mobile Internet signals of all outdoor mobile communication standards. It is used in conjunction with USB modems, LTE routers, and CPE fixed routers. Technical specifications Cable length, m=5 Voltage SWR, no more 1.4 Package weight, kg 0,8 Operating frequencies, MHz 790-860, 1700-2700 Assembled dimensions, mm 275x245x87 Antenna placement external Gain, max., dBi9 / 15 Wave resistance, Ohms 50 Connector type SMA Weight, kg 0.8

d=52,5 mm>>>for 2,35 GHz d=54,3 dr=180 mm>>>for 2,35 GHz dr=186

If we had to participate in field tests of a transceiving apparatus, part of which was various types of antennas, and as Omni-directional, they are independent from the design and the claimed gain in performance for range transmission and reception is insignificantly different from each other. A significant difference was their price. Of greater importance, as we understand it from practice, had such option antenna as it is efficiency, which directly connected with the working surface (the larger antenna size than she is better), but not with the stated gain. So simple homemade omnidirectional antenna is not what is not inferior to similar fancy designs. For beginners, we don't would advise to grasp for the production of Omni-directional antennas with a large gain such as collinear or the like. Without skills and lack measuring instruments to achieve from these structures excellent results not will. The antenna that we propose to assemble, has an important property. First of all, it is quite simple and broadband (bandwidth 200 MHz), this means that miss relative to the fundamental frequency of transmission and reception as a result of the inaccuracy construction will be difficult, which is an important factor in the case the lack of measuring devices. However, simple a homemade antenna will differ markedly from the purchase of the product may because a nested design energy of creativity yields results. The antenna is a quarter-wave vibrator with a counterweight

Pupe, try a Strella-11 omni antenna too....!!! I think we still need to work on this...

Also available for sale are the more powerful Stella-8 and Stella-11 antennas with a gain of 8 dBi and 11 dBi, respectively. Communication Standard WIFI 2400 Frequency range, MHz 2400-2480 Gain factor, dB 11 Bottom width in the horizontal plane, deg 360 Bottom width in vertical plane, deg 9 Wave resistance, Ohms 50 SWR no more than 1,5 Weight, grams 1100 Dimensions, cm 100 x 8 x 6 RF connector N-Female

,,,that's what it would be like... reflector diameter=180 mm

,,,122 mm diameter.../// I don"t think so...!!! ///maybe 40,5mm iameter...!!!

,,,what is the diameter of the rings and plate...!!!

,,,take this... parabola0,6.cst

,,,this is the simulation with your parabola(f/D=0,6)... and Efficiencies... And this is the antenna...

0.01 dB

No, this is not a general rule....what do you mean by efficiency coefficient...!!!...???

,,,but f/D=0.,448 ,it must to be 0,6...!!!

I think it must be f/D=0,6 Did you get the antenna from this forum...???? What is the diameter of the parabola...???

,,,yes, it seems so, the antenna is narrow band...!!!

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

5.8 GHz 17dB High Gain AAT Automatic Antenna Tracker for HD FPV RC Racing Drone Product Description: Model: 5.8 GHz 17dB AAT Automatic Antenna Tracker Frequency Range: 5150-5950mhz Input impedance: 50Ω VSWR at surface level: <1.5 Antenna Gain: 17dBi HPBW (3dB): 16 ° H-plane 38 ° E-plane F/B:> 20 (dB) Max Power: 50W Polarization: Vertical polarization Connector Type: RP-SMA Static protection: DC ground Antenna Length (AAT): 30 cm Size: 136*68*10 mm Weight: 57g (Manual)/47g (AAT) Package included 1x5. 8 GHz 17 dB high gain

,,,yes...!!1

Irradiator series BOF-2xxx is designed for use with standard metal, satellite parabolic offset mirror. The utilization of mirror surface is more than 0.7. The radiator is optimized for mirror with f/d=0.5÷0.7 and the angle of irradiation 75÷90 degrees. (The vast majority of satellite dishes on the market.) The plane of polarization of the antenna is changed by changing the position of the radiator to the mounting site. (Rotation, followed by fixing in position.) Polarization direction is indicated by an arrow (the arrow) on the casing of the irradiator. The direction of polarization of the radiator and antenna are the same, because after reflection from the reflector, the vector of linear polarization is not changed. With circular polarization, upon reflection from the mirror direction of rotation is reversed! ,,, this is a MiMo simulation irradiator, the antenna can be on different frequency range

,,,a first simulation attempt, optimization follows...

Here are some quick notes about the parabolic type dish antennas you might find. The actual antenna is a normal half wave dipole with an integrated balun and is located inside the sealed plastic cover. The mesh screen is the reflector which concentrates the RF energy onto the antenna. That is how dish antennas increase the received or transmitted power level. Also, wireless cable service providers frown upon giving away their used dishes as they think you're going to steal cable service.

Single band IEEE 802.11 a/n standard High gain patch antenna Frequency (MHz) : 5150-5825 Peak Gain (dBi) : 10.0 VSWR : 2.0 : 1 Dimension (mm) : 76 x 72 x 3.8 Connector : IPEX MHF I Cable Length (mm) : 50 (customized) It seems to work well on the 5.6 GHz frequency.