increased to 80-90% with the use of a Am /4 matching A double-slot antenna is chosen as the feed antenna for the extended hemispherical ... hyperhemispherical lens [17]. The double-slot antenna patterns are calculated assuming a sinusoidal magnetic current distribution on the slot and using an array factor in the E-plane direction [21]. The ... 2 Meter Copper Pipe Plumbers Delight Dipole Antenna by Copper Plumbing Pipe Dipole Antenna for 2 Meters by W4ZT . You will need to double check yours before soldering. ... The SO239 connector makes a good choice for the dipole. I cut a slot in the "T" connector as seen above with a die grinder and cutting wheel. The slot is sized so that the corner of the connector will fit snugly into it. Loop antenna - Wikipedia A loop antenna is a radio antenna consisting of a loop or coil of wire, tubing, or other electrical conductor usually fed by a balanced source or feeding a balanced load. Within this physical description there are two distinct antenna types. The large self-resonant loop antenna has a circumference close to one wavelength of the operating frequency and so is resonant at that frequency. Topband: Magnetic Slot Antenna - Contesting I've looked through most of the list's archives and have not found >any references to it. > >The description on which I am currently focused appears on page 18 of the >ARRL's Antenna Compendium, Volume 4, "The Double Magnetic Slot Antenna for 80 >Meters" by Lew Gordon, K4VX.
The basic principles of slot antennas are presented, along with design parameters. ... The second major result of Babinet's/Booker's principle is that the fields of ...
Antenna Article Master Directory - ARRL 1 Apr 2016 ... 119, Antenna Compendium, Volume 4, 80 and 160-meter Antennas, 18, The Double Magnetic Slot Antenna for 80 Meters, Lew Gordon, K4VX ... Practical HF Antennas - OCARC The 80 and 160 metre dipoles are quite long and should be made of hard drawn .... If 300-ohm ribbon or slotted line is used, the length must be adjusted to take .... output (ideal for HF contesting in the single-antenna section). For occasional ...... Furthermore, the short loop utilises the near-field magnetic component of the ...
Magnetic loop antenna for 160-40 meters 1KW - YouTube
A loop antenna is a radio antenna consisting of a loop or coil of wire, tubing, or other ... A rectangle twice as high as its width gives a bit more gain than the square loop ... A small transmitting loop antenna, also known as a magnetic loop, with a .... receiver, and accessories used in amateur radio direction finding at 80 meter ... (PDF) ARRL Basic Antennas | Jimmy Rachmat - Academia.edu Chapter I Introduction to Antennas Chapter 2 The Half-Wave Dipole Ante nna in Free .... Ag '·3 - A wire Immersed In the magneUc fle ld of a permanent magnet. .... while some multiple of Hz . The usual ones 300,000,000 meters per second in .... J:~ are proportional) , as we ll as the o 20 4 0 60 80 100 12(l "0 tOO 180 power, ... . AMATEUR RADIO The Half-Wave Dipole Antenna in Free Space. The Field From a .... changing magnetic field and current Is Induced to flow. C...,.eol Flow ..... lion meters per second, and f" in ...... t-c: raised Laaround 80 n by the Fig 1D-3 - Deta ils of 8 simple HF end·ftre array. Note 180" ...... The slot antenna is an interesting configuration that.
My 80 Meter Magnetic Loop - Resource Detail - The DXZone.com
Build a 160/80 Meter Magnetic Loop Antenna - Part 1Jeri Ellsworth.This is my 6 foot diameter magloop for 80 and 160 meters. I create a two turn outer loop to get down to 160 and it works very well. I checked in to a local 160 ... Magnetic Loop Antenna – PAøRWE | Reflection meter I also made a QSO on 80 meters with this construction and the reports were good to very good. Tuning Tuning a Magnetic Loop Antenna is very difficultTuning capacitor Another point of attention is the tuning capacitor. Because of the very high voltage, the antenna requires a high voltage capacitor. 80 Meter Magnetic Loop Antenna - Bing images 80m Magnetic Loop Antenna | Small Magnetic Loop Antenna ... 700 x 453 jpeg 30 КБ.www.bingapis.com. 80 Meter Loop Antenna - Bing images. 80m Magnetic Loop Antenna
The 80 and 160 metre dipoles are quite long and should be made of hard drawn .... If 300-ohm ribbon or slotted line is used, the length must be adjusted to take .... output (ideal for HF contesting in the single-antenna section). For occasional ...... Furthermore, the short loop utilises the near-field magnetic component of the ...
A Reversible Parallel Slot Antenna I read Lew Gordon's article in the Fourth ARRL Antenna Compendium "The Double Magnetic Slot Antenna for 80 Meters" where he tells of playing with some ideas suggested by John Brosnahan W0UN about improving the slot antenna.
Multiband antenna 80-10 plus 6-2 meters by W5GI; Multiband Dipoles .... Antenna Projects From The YCCC -- Double-L For 80/160, -- From The Yankee Clipper ... the DX · Magnetic Loops -- By Wolfgang DJ3TZ; Magnetic Loop Antenna -- From .... at PSU · Antenna combination loop/dipole, by KB9MZ · Slot Antenna Design ...