polar

112 links

A 144 MHz turnstile antenna
Omnidirectional and horizontally polarized VHF antenna

[ Hits: 1300 | Votes: 4 | Rating: 5 ]
The Cycloid Dipole Antenna - WA7X
A 2 meter antenna made of copper tubes, offering circular polarization

[ Hits: 1941 | Votes: 15 | Rating: 7.2 ]
2 Meter Vertical Moxon - WB5CXC
A home made vertical polarized moxon antenna for 144 MHz includes dimensions antenna pattern SWR ...

[ Hits: 2088 | Votes: 4 | Rating: 7.5 ]
2m Big Wheel Antenna - G3XBM
A Useful Horizontally Polarised Omni-directional Antenna with Gain for 144 MHz

[ Hits: 1324 | Votes: 4 | Rating: 7.75 ]

VK2ABQ Antenna for 50MHz
A vertically-polarised VK2ABQ Antenna for six meter band

[ Hits: 509 | Votes: 0 | Rating: 0 ]

Helical Antenna Design Calculator
Helical antennas invented by John Kraus give a circular polarized wave They are one of ...

[ Hits: 2164 | Votes: 16 | Rating: 6.63 ]

Halo Antenna for 50 MHz - KP4MD
A well documented article about construction and analysis of a horizontally polarized halo antenna for ...

[ Hits: 1505 | Votes: 5 | Rating: 5 ]
2m Halo Antenna - KP4MD
Construction and analysis of a low cost omnidirectional horizontally polarized antenna for 144 MHz including ...

[ Hits: 1014 | Votes: 9 | Rating: 5.34 ]

The Basics of Patch Antennas - Orban Microwave
This article explores the basic concepts of patch antennas Topics include principles of operation impedance ...

[ Hits: 807 | Votes: 1 | Rating: 9 ]
Microstrip Patch Antennas - microwaves101
Article about the microstrip patch antennas and in particular the rectangular single polarization microstrip antennas ...

[ Hits: 259 | Votes: 2 | Rating: 8.5 ]

Archimedean Spiral Antenna for RTLSDR - T Milligan
Dodgy plans to make Archimedean spiral antenna for RTLSDR software defined radio receiver Made of ...

[ Hits: 1035 | Votes: 2 | Rating: 10 ]

Ground Loss and Vertical Antennas
How manage and quantify ground loss in vertically-polarized antennas by VE3VN

[ Hits: 597 | Votes: 0 | Rating: 0 ]
Detuning a Tower from a vertical antenna
It is possible to detune the tower so that at least on one band the ...

[ Hits: 441 | Votes: 0 | Rating: 0 ]

The Skew-Planar Wheel Antenna
This is a very useful aerial design forgotten for 40 years This antenna offer a ...

[ Hits: 609 | Votes: 3 | Rating: 4 ]
The Turnstile antenna
An omnidirectional and horizontally polarized VHF antenna by EA4EOZ

[ Hits: 919 | Votes: 4 | Rating: 3.25 ]

MP Antenna - Adam Doskocil
Multi Polarized antennas for Land Mobile Radio Indoor Outdoor Networks Home Wireless Mining Communications Remote ...

[ Hits: 407 | Votes: 1 | Rating: 8 ]

VHF Linear Amplifier by SV1BSX
There is not a personal design on this page just I ve transfered useful notes ...

[ Hits: 1432 | Votes: 3 | Rating: 4 ]

Polarization Rotator for EME - M0VKK
2m EME Polarization Rotator for Yagi antennas

[ Hits: 435 | Votes: 0 | Rating: 0 ]

Using Bipolar Transistors As Switches
While transistors have many uses one of the less known uses by amateurs is the ...

[ Hits: 331 | Votes: 0 | Rating: 0 ]
A quick polarity tester
A little gadget was found in an article in QST made with 1 pair of ...

[ Hits: 299 | Votes: 0 | Rating: 0 ]