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Admin
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Everything posted by Admin
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which antenna?
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What dimensions did you use for FR4 thick 1mm ,,, ??? I have not posted such dimensions....!!!
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,,,if CP is Circular Polarisation,,,,YES...!!!!
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,,, for 1200MHz,don"t you think that the antenna is too big, about 4,8 times...???
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Something like that ...???
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,,,and here is a patch-yagi antenna made only from tin cans....
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this means; the efficiency of an antenna is a ratio of the power delivered to the antenna relative to the power radiated from the antenna. A high efficiency antenna has most of the power present at the antenna's input radiated away. A low efficiency antenna has most of the power absorbed as losses within the antenna, or reflected away due to impedance mismatch. the efficiencies; -radiation efficiencies(magnitude in dB) -total efficiencies(magnitude in dB) -gain(in dBi)
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"I do not know exactly, I think 59mm, but the simulation should be done
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Yes,,,!!!
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and here are the results for the frequency band 2500-2620MHz
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только для образца .. !!!
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круговые диски более эффективны
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да, конечно
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Оkay Босс, я понимаю,,,!!!
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«Ну, Босс, но это широкополосная,,,!!!
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Yes, something like that
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не хватает многих габаритных размеров, и кажется, что левая сторона имеет другое расстояние от отражателя
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Dual Circularly Polarised Patch Antenna
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The unique properties of NorCLAD make it perfectly suited for use in microstrip patch antenna designs. NorCLAD has a low dielectric constant and low dissipation factor and good thermal performance that make it an excellent choice for GPS receiver and WLAN router antennas. It is an isotropic material that gives it excellent Dk tolerance control for improved center frequency performance. The material is available up to 0.500 in. thick for bandwidth considerations. NorCLAD is frequently used in stacked microstrip patch antenna applications. Available thicknesses range from 0.060 to 0.500 in. and in 20 in. x 22 in. panels. Available copper weight per thickness ranges from 0.5 to 2.0 oz./ft2. Important properties of NorCLAD include: Dielectric constant of 2.55 Dissipation factor of 0.0011 at 3 GHz Operating temperature range of -55° C to +125° C
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I do not know the price ,,,, see this,,,,http://www.polyflon.com/
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BESTER TAB 3G+4G ANTENNA, 3G/4G/LTE, 13 DB Antenna Bester Tab 3G + 4G is designed to increase the speed and stability of connection mobile Internet in 2 modes: 3G transmission frequencies modem 1885 MHz to 2025 MHz and of the radio reception with the tower operator 2110 MHz — 2200 MHz 4G/LTE 2600 MHz band The antenna can be operated in a network of any operator and connects to any USB 3G/4G modem (router) with connectors for external antennas. Weatherproof shockproof design, low weight and versatile mounting allow to recommend the use of this antenna in the car, at the cottage, hikes and walks. The antenna can be easily positioned on any horizontal and uneven surfaces, and if desired, it is easy to fix on the wall structure or outer slope of the window, standing next to the tree. The mount allows you to install the modem on the antenna Bester Tab 3G + 4G any USB modem, as well as most mobile 3g/lte/WIFI routers.
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хорошо, спасибо, посмотрим, что выходит из этого..!!! но все же нужны эти размеры ///
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Эркин, я пробовал многомерные изменения, но результата нет !!! эта антенна - ложь!
