|
Search
|
 |
Theory
Antenna theory, basics,design antenna
(Featuring 119 links)
|
Additional Categories
Site listings
Most Popular
- Antenna basics
- Basics by From Ian C. Purdie, VK2TIP
- Basic Antenna Theory
- Basic antenna theory by sub-TV
- J-Pole theory
- The J-Pole antenna is an omnidirectional antenna that can be used for base, mobile and field day stations. It does not need a ground plane, radials or a complicated matching system. The J-Pole can be cheaply, simply and quickly constructed using a variety of techniques, some of which are discussed in this article.
- Balun Theory
- The word balun means balanced-unbalanced: it's used to adapt a balanced device to an unbalanced one
- Why an Antenna Radiates
- How antenna works by ARRL
- Antennas and Grounds for apartments
- Suggestions on finding RF ground when you live in an apartment and you want to setup an antenna
- FAQs - Basic Antenna Theory
- Faqs and antenna basics
- How to Construct a Dipole
- Basic and illustrated article on building wire dipole antennas. This page is about "how to build a dipole antenna"
- Do You Need an Antenna Tuner
- Maybe yes, maybe no. It all depends on the type of antenna and feed line you're using. QST Article in pdf format
- Install a PL-259 on an RG-8X
- A better way to install PL-259 connectors on RG-8X type coax by Dan Richardson, K6MHE
- Grounding system
- Perhaps one of the most over looked aspects of setting up a listening post is a ground system
- Antennas : theory and designs
- Thierry LOMBRY, ON4SKY, develops in several long articles all you need to know about antennas, their design and performance, for both amateurs and SWL
- Dipole Height
- How High should my Dipole be?
Dipole Antennas and the effect of height above ground
- Low Noise Antenna Connection
- Reducing noise to your antenna can gain your aerial performance, learn how.
- Antennas and Propagation
- The most important element in a radio circuit is the antenna. You may have a powerful transmitter and a frequency, but without the correct antenna, communication will be less than desirable, if not impossible.
This subcourse provides information necessary to make the right choice for an antenna and how to select the correct frequency depending upon the environmental conditions.
Without an understanding of wave propagation, decisions on frequency selection and antennas could result in no communications.
- W1GHZ Microwave Antenna Book
- The W1GHZ Online Microwave Antenna Book online
- Antenna Noise and Signal Cancelling at LF
- By using the signals from two antennas, controlling their relative amplitudes and controlling the phase of one of them, unwanted signal or unwanted noise can be phased out. Circuitry is described which uses the signal from a wire antenna to provide selective cancelling against the signal output from an LF loop antenna.
- G5RV Measurements
- Measurements and characteristics of a G5RV Antenna, including effect of the transmission line as part of the antenna and contributes in a large way to it's multi band characteristics
- Multiband antennas
- Information on multi-band antennas for the HF bands, from the horizontal end fed wire, to g5rv, log periodics, trap dipoles, vee beams and rhombic antennas.
- Understanding Standing Wave Ratios SWR
- We worry a lot about Standing Wave Ratio (SWR) in amateur radio since SWR is one indication of how well our antenna system is working. Most HF transceivers and antenna tuners have built in SWR meters. SWR is a measure of a transceiver’s output power verses the portion of that power reflected by the antenna system By Ken Larson KJ6RZ
- Why I use dBi
- Info about Gain
- Radiation and scattering
- Basic antenna theory, Antenna directivity and effective area, Antenna arrays
- Loading inductors in mobile antennas
- Mobile antennas, loading coil current, and loaded antennas. efficiency and electrical rules.
Loading inductors used in mobile HF antennas.
Alphabetical
- The mark 2 Crossfield Antenna
- The mark 2 Crossfield Antenna was described in Sprat 76 by Alec, GD3HQR
[Hits: 224 | Votes: 0 | Rating: 0.00] - The Quarter Wave Sloper or the Inverted-V Dipole
- A question that seems to be asked nearly everyday is, which is best, the quarter
wave sloper or the inverted-V dipole? PDF File by AD communications.
[Hits: 916 | Votes: 4 | Rating: 8.00] - To Trap or Not to Trap
- An interesting article on traps, pros and cons of trapping by W4RNL
[Hits: 606 | Votes: 0 | Rating: 0.00] - Transmitter Power, Antenna Gain, Coax Loss
- Understanding relatio among transmitter power, antenna gain, and coax loss Trade-offs by Ken Larson KJ6RZ
[Hits: 1120 | Votes: 1 | Rating: 1.00] - Trap antennas, coaxial trap, coax dipole antenna loss resistance
- Testing and comparison of traps and trap antennas
[Hits: 1254 | Votes: 1 | Rating: 10.00] - Tuning Your Antenna
- Getting the best performance from your investment
[Hits: 223 | Votes: 1 | Rating: 8.00] - Understanding Standing Wave Ratios SWR
- We worry a lot about Standing Wave Ratio (SWR) in amateur radio since SWR is one indication of how well our antenna system is working. Most HF transceivers and antenna tuners have built in SWR meters. SWR is a measure of a transceiver’s output power verses the portion of that power reflected by the antenna system By Ken Larson KJ6RZ
[Hits: 2425 | Votes: 3 | Rating: 6.33] - Using Delta Matching on HF Beams
- Using delta match with HF antennas design
[Hits: 1273 | Votes: 1 | Rating: 1.00] - Vertical amtennas among the trees
- Experiments on vertical antennas among the trees by ik2egl
[Hits: 148 | Votes: 0 | Rating: 0.00] - Vertical and Above
updated
- Using vertical on six meters band and above, by Peter Schleuss, HB9RUZ
[Hits: 70 | Votes: 0 | Rating: 0.00] - Vertical plane antennas' beaming comparision
- Animated quad and yagi comparison. You can see antennas' characteristics behavior in a vertical plane with changing of the height.
[Hits: 1073 | Votes: 7 | Rating: 3.14] - Vertical vs Horizontal antenna separation
- Isolation vs antenna separation an interesting article by WA6ILQ
[Hits: 50 | Votes: 0 | Rating: 0.00] - VLF-LF and the Loop Aerial
- The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise by Lloyd Butler VK5BR
[Hits: 78 | Votes: 0 | Rating: 0.00] - VSWR Explained
updated
- An interesting article on Voltage Standing Wave Ratio vs Current Standing Wave Ratio by EPARA
[Hits: 47 | Votes: 1 | Rating: 1.00] - W1GHZ Microwave Antenna Book
- The W1GHZ Online Microwave Antenna Book online
[Hits: 3452 | Votes: 9 | Rating: 7.00] - Why a Beam Antenna
- Some basic antenna information for the newcomer
[Hits: 262 | Votes: 0 | Rating: 0.00] - Why active antennas aren't perfect
- There have been various comments here regarding the effectiveness of active antennas
[Hits: 814 | Votes: 2 | Rating: 1.00] - Why an Antenna Radiates
- How antenna works by ARRL
[Hits: 7433 | Votes: 20 | Rating: 8.01] - Why I use dBi
- Info about Gain
[Hits: 2104 | Votes: 3 | Rating: 7.00]
|
|
