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Impedance of a dipole


Impedance of a dipole

A conductor supplied in the middle has an impedance which depends mainly on its length and its diameter but also on the frequency

post 14 Sep 2024


Antennas theory Links

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Simple FM antennas
This directional antenna is typically mounted broadside to the desired transmitter

The Ferrite Rod Antenna
The use of a small Magnetic Loop as an antenna although usually better than a Hertzian dipole

Transmission line transformer
The earliest presentation on transmission line transformers was by Guanella in 1944

Yagi-Uda Antenna
The Yagi antenna consists of a single 'feed or driven element, typically a dipole or a folded dipole antenna


Ferrite-shop

Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice

Kits and Components

Amateur radio kits by Kanga US

50MHz to 28MHz RX Converter

50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal