Multi-Band HF Delta-loop Antenna. Loop systems, however, have seven distinct advantages over these other hearing assistive systems. Greetings Recently I was experimenting with HF delta loop antennas, and I wanted to make a multi-band antenna combined with the advantages of a delta loop. The folded dipole antenna is half a wavelength wide, with each dipole element being a quarter wavelength long. The electrically small size of these loop antennas has the advantage of convenience in handling, availability of a zero- response orientation, and a simple expression for the voltage produced by a given field strength. Refer Antenna tutorial >> and antenna types >>. In fact, my 80 meter loop antenna could be tuned on 6 of the 8 bands with just the built-in ATU in my Kenwood TS-930SAT. Following are the benefits or advantages of Loop Antenna: It is light in weight. I've been fooling around with different wire antenna configurations for a couple months now for 80m, starting off with a simple dipole at 30'....graduating to a full wave sky loop at 30', then to a full wave delta loop with the apex at 85', all with (in my opinion) less … It is suitable for portable applications such as direction finding etc. Advantages of Antenna Types. A folded dipole antenna is made from a basic dipole antenna with an added connector that connects the two dipoles, creating a loop. All of these work well for us, although some have specific advantages in specific situations. Discussion in 'Antennas, Feedlines, Towers & Rotors' started by OD5OJ, Apr 19, 2019. While this loop antenna will not outperform a yagi or a 4 square, it is a decent all-around antenna. The main advantages of this 80 meter loop are the low takeoff angle on higher bands (good DX antenna) and the fact that it can be easily matched on 8 HF bands. In addition to the basic, television-top dipole antenna, many other forms exist. It is simple and compact in structure. The radius of the loop, R, could be electrically small or large. 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. Following are the advantages of Antenna types: Dipole Antenna:They are cheap and exhibits good gain.
Folded dipole antennas have ends that turn back toward the center to help maximize the signal strength. My Loop Antenna November 20, 2013 2 Outline • Brief History • Characteristics of Small Loop Antennas for HF • My Loop for 40m –15m • Receive/Transmit Properties of Elect.-Small Loops • Loop Equations • Measuring Efficiency of a Loop or Vertical Antenna • Evaluation of My Loop –Comparison to Verticals • Conclusions -References.