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Designing PCB Log Periodic Antennas

机译:设计PCB对数周期天线

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Over the last few years, I have developed 4 Log Periodic antennas from 50 MHz to 6 GHz. I wish I could say I have a secret design process, but there were many variations and metal tape on the early models. And while there are software programs such as IE3D than can analyze a log periodic antenna on a dielectric surface, I do not know of any programs that can design such an antenna. And as commercial antenna go, this is a poorly performing antenna. Instead of a flat -10 dB Return Loss, these antennas have dips, at 2.3, 3.4, and 5.7 GHz. As a radio amateur, I am willing to loose a little performance outside the call frequencies for better spot performance on the call frequency.
机译:在过去的几年中,我开发了4种对数周期天线,频率从50 MHz到6 GHz。我希望我可以说我有一个秘密的设计过程,但是早期的模型有很多变化和金属带。尽管有诸如IE3D之类的软件程序可以分析介电表面上的对数周期天线,但我不知道有任何程序可以设计这种天线。而且随着商用天线的发展,这是性能不佳的天线。这些天线具有2.3 GHz,3.4 GHz和5.7 GHz的倾角,而不是平坦的-10 dB回波损耗。作为无线电爱好者,我愿意在通话频率之外放一些性能,以便在通话频率上获得更好的现场性能。

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