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A DISCUSSION OF ANTENNA THEORY ... 1. ANY piece of conducting material will work as an antenna on any frequency. ... One attempt at elevating a dipole antenna resulted in what is commonly known as the 5/8 wavelength vertical antenna. The theory goes something like this:
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k9erg.tripod.com/theory.htm
k9erg.tripod.com/theory.htm
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Antenna theory sounds like a boring, dry subject, but understanding how an antenna radiates, how it interacts with ground and understanding something about antenna polarization is central to being able to answer the question that most hams really have when they think about antennas -- "Which antenna is best?"
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www.arrl.org/tis/info/antheory.html
www.arrl.org/tis/info/antheory.html
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Antenna theory, basics,design antenna ... Basic Antenna Theory - Basic antenna theory by sub-TV ... FAQs - Basic Antenna Theory - Faqs and antenna basics...
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www.dxzone.com/catalog/Antennas/Theory/
www.dxzone.com/catalog/Antennas/Theory/
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A thorough tutorial of antennas and antenna theory. This page is designed to present a comprehensive overview of antennas, from design, to measurement and theory. Specific concepts are described, individual antennas are described, array antennas are detailed, and measurement techniques are given. ... Antenna Arrays...
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www.antenna-theory.com/
www.antenna-theory.com/
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Radio waves are generated by electrons accelerating in the antenna. ... For a station that broadcasts at a wavelength of 1500m, the antenna needs to be 750m long. This is because there is a 'virtual antenna' caused by the aerial being earthed in the ground:
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www.sub-tv.co.uk/antennatheory.asp
www.sub-tv.co.uk/antennatheory.asp
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The basic antenna ... As with all antennas, the height above ground and proximity to other objects such as buildings, trees, guttering etc. play an important part. However, reality says we must live with what we can achieve in the real world notwithstanding what theory may say.
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www.electronics-tutorials.com/antennas/antenna-basics.h...
www.electronics-tutorials.com/antennas/antenna-basics.htm
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ANTENNA BASICS ... ANTENNA DIPLEXER ... This section will over time become a very comprehensive resource for antenna theory and practice.
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www.electronics-tutorials.com/antennas/antennas.htm
www.electronics-tutorials.com/antennas/antennas.htm
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It possible to solve exactly for the radiation pattern emitted by a linear antenna fed with a sinusoidal current pattern. ... According to standard transmission line theory, if a transmission line is terminated by a resistor whose resistance matches the characteristic impedance of the line, then all of the power transmitted...
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farside.ph.utexas.edu/teaching/jk1/lectures/node82.html
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"Radio waves" transmit music, conversations, pictures and data invisibly through the air, often over millions of miles -- it happens every day in thousands of different ways! Even though radio waves are invisible and completely undetectable to humans, they have totally ... Antenna Basics ... Antenna: Real-life Examples...
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www.howstuffworks.com/radio.htm
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