trap dipole

10 Meter Vertical Dipole - Homebrew a vertical dipole for 28 Mhz by N2UHC

Petlowany Three-Band Burner Antenna - The Petlowany Three-Band Burner is a simple, low-cost, trapless short vertical antenna which amazingly works on three HF bands (20, 15 and 10 meters). This web page contains pictures, performance data, and enough construction details so you can homebrew your own.

40-80 Dipole antenna - A 40 80 dipole antenna design by WA6ESC PDF File

A wideband 80 meter dipole  ^pop - This worthy antenna is so simple and inexpensive you will want more than one by N6LF

80 meters Short Dipole - The best antenna is the simple Dipole. If you have height, you even can put up a quarter wave vertical or an inverted, but sometimes you may need shorten version by 4S7NR

CobWebb multiband folded dipole - It is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10M & 20M, the antenna is also resonant on 6M

Build a multiband dipole - A nicely documented procedure to build a multiband dipole spending $30 in material and half an hour in assembling by Andrew Daniel - KI4QFY

Rotatable Dipole for 40m-6m - This article describes a simple, inexpensive, dipole antenna that will rival the performance of a ten-meter beam.

Wire antenna with coaxial cable traps - This multiband antenna 10-80 meters is a home made project by I1BAY. Has been used for SOTA activations with great results. Traps are done with coax cable turns, dimensions are in the attached schema.

Ribbon Dipole - Ideal antenna for QRP work, as it has more gain over dipole.

Indoor multiband dipole - This indoor dipole is available in two version for 20-10 meters and 40-10 meters. EZNEC data files available by HB9MTN

Build a hanging dipole for 2 metres - Described here is a simple omni-directional, vertically-polarized dipole for two meters. Made from coaxial cable, it can be rolled up and stored in a small container

Dipole Calculation - Determining your proper length for the open half-wave dipole antenna

Dipole Antenna Radiation Patterns - Much confusion exists about the radiation patterns of antennas. In particular, the horizontal dipole is misunderstood by most who use it.

Dipole antenna - Overview, summary, tutorial about the dipole antenna or dipole aerial that is widely used on its own and as the basis for other antenna designs.

T2FD, The Forgotten Antenna - The terminated. tilted, folded dipole T2FD is a little known antenna that performs excellently. Compact in size compared to a half­-wave dipole the T2FD provides signal gain, wide frequency coverage, and exceptionally low noise characteristics.

An improved 40-80 double extended zepp - Article originally published in ARRL compendium by N6LF revisits the classic double extended Zepp to improve pattern and SWR bandwidth. The DEZepp is essentially two end-fed collinear dipoles.

Another way to look at vertical antennas - What iss the difference between a dipole and a vertical? Maybe not as much as you think. Come along and try another point of view.

Multi Band Antenna Traps - These devices are called Traps, but they are actually more like frequency sensitive switches. They are parallel resonant, high Q, tuned circuits which provide a very high impedance at their frequency of resonance.

Trapped antennas - ARRL index of document about trapped antennas and notes on traps usage

TrapDip - This program let you design and performance of 2-band trapped dipole antennas including trap design.

CoaxTrap - This program let you design of antenna trap using length of coaxial line wound as solenoid on a coil former.

VE6YP CoaxTrap - The Coax trap program computes design parameters for the construction of coaxial traps for HF usage. Typically these are constructed from PVC tube and RG58/59 coax

7 Mhz traps for W3DZZ

LA6PB's split dipole - A new method of feeding a dipole with toroids.