Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 35,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.
We make every effort to link to material posted by the designer. 
Please let us if you would like us to link to or post your design.

HOME Schematic Lists Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches

 

Antenna Circuits - Page 2
Antenna Circuits:  #'s - A        B - R        S - Z
Last Updated on: Saturday, August 30, 2014 10:27 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Build a hanging dipole for two metres -  Ideal for the portable operator….amateur radio construction projects…. [from Peter Parker's website]
Build a simple crystal set -  amateur radio construction projects…. [from Peter Parker's website]
Compact L-match ATU for portable use -  amateur radio construction projects…. [from Peter Parker's website]
Dipole Antenna -  A simple dipole antenna can be used for improved FM broadcast signals. A dipole is basically a length of conductor (wire) split into two portions and signal is taken off at the split....(added 07/07/07)
E-field Circuits -  If you place the amplifier at the antenna, you avoid all that cable capacitance but your amplifier must have a correspondingly higher input impedance to maintain flat gain at the lower frequencies. For a typical 10 pF... (electronic design added (6/07)
Ground Pole Antenna -  This Antenna is most widely used all over the world. For example, when you see a police car it has a transmitter with Ground Pole Antenna The body of car serves as ground). It accepts load from 50 ohm source and has larger power output than Half-Wave Dipole Antenna....(added 07/07/07).
Half-Wave Dipole Antenna (Open Dipole) -  It accepts load from 75 ohm source and has much smaller power output than Ground Pole Antenna. Use this antenna only when you don't have GP Antenna. Construction: Two aluminum rods ,each of length "L" in meters are joined together through an insulator as shown in fig. From center, 75 ohm cable is feeded just like ordinary TV antenna....(added 07/07/07)
J-Pole Antenna -  Tuned for 89MHz in the FM broadcast band....(added 07/07/07)
Magnetic loop antenna for 160 to 15m -  amateur radio construction projects…. [from Peter Parker's website]
Magnetic loop antenna for 80 and 40 metres -  amateur radio construction projects…. [from Peter Parker's website]
Medium Wave Active Antenna -  This circuit is designed to amplify the input from a telescopic whip antenna. The preamplifier is designed to cover the medium waveband from about 550Khz to 1650Khz. The tuning voltage is supplieb via RV2, a 10k potentiometer connected to the 12 Volt power supply.... [Circuit : David Sayles]
Pedestrian mobile HF antenna -  amateur radio construction projects…. [from Peter Parker's website]
Pi Section Coupler -  Inexpensive gadget tunes antenna for better DX.  Almost any receiver covering 540 kHz to 1600 kHz is suitable for broadcast band DX'ing, and there are a lot of them. But the antenna is another matter. If you are new to the hobby, or if you have been having trouble DX'ing those really difficult stations, you may find the answer to your reception problems in a properly constructed long-wire antenna - and the "Pi-section Coupler".... [by Roy A. Walton]
Q Multiplying Loop Antenna -  (schematic added 9/02)
QRP Antenna Tuner -  This circuit is for a QRP (low power) antenna tuner, a.k.a. a transmatch, for use in the short wave amateur radio bands from 3-30 Mhz. It allows a wide variety of antennas to be connected to a low power transmitter. When the circuit is properly tuned, the maximum transmitter power will be delivered to the antenna. It is used in conjunction with a standing wave ratio (SWR) meter.  This is a fairly generic antenna tuner circuit. [design by G. Forrest Cook]
QRP DX antenna -  amateur radio construction projects…. [from Peter Parker's website]
RF Amplifier for Ferrite Bar Antennas -  (electronic circuit added 1/03)

 

Antenna Circuits:  #'s - A        B - R        S - Z


 Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.

HOME Schematic Lists Hobby Corner Dave's Circuits Electronic Resources Contact Info

 

 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |    Privacy Policy

Copyright  2002 - 2014 David A. Johnson & Associates.  All Rights reserved.