What frequencies do loop antenna is used?
They are typically used on frequencies between 3–30 MHz. They usually consist of a single turn of large diameter conductor, and are typically round or octagonal to provide maximum enclosed area for a given perimeter.
What is the bandwidth of a loop antenna?
It is found that a CP wave bandwidth for a 3 dB axial-ratio criterion has a maximum value of 8%. On the basis of the analysis results, we design the loop-line antenna. It is found that the antenna shows a CP wave bandwidth of 6%, which is twice as wide as that of a conventional loop-line antenna.
What is the gain of loop antenna?
The designed loop antenna is self-matched to the 50-ohm impedance of a source and provides a high directional gain of 8.2 dBi. The antenna gain is increased to 10.0 dBi by using a dual multi-loop geometry. Sample antennas are designed and manufactured for operating at 2250 MHz.
Is there a 50MHz loop antenna for 6 meters?
The main category is Homemade antennas for 6 meters band 50 MHz that is about 50MHz antennas plans, homemade antennas for the six meters. This link is listed in our web site directory since Thursday Dec 15 2011, and till today ” Loop Antenna for 50 MHz ” has been followed for a total of 1608 times.
How big is a 4.50 MHz halo antenna?
4. 50 MHz Halo Antenna – omnidirectional horizontally polarized. The full sized halo loop is 112 inches or 284 cm (37 inch or 94 cm diameter) of 1/2 inch (12.5 mm) soft aluminum tubing coil.
What kind of wire is used for a halo antenna?
The gamma match rod is 18 inches (46 cm) of 12 AWG solid copper wire spaced 1.5 inches (3.8 cm) from the halo loop and with a shorting clip at 13.5 inches (34.3 cm). The supporting boom is 1/2 inch (12.5 mm) Schedule 40 PVC conduit. 5. Another view of the 50 MHz Halo Antenna. 6.
What kind of antenna has a half wave dipole?
In order to obtain a horizontally polarized antenna that radiates almost equally in all directions, we may bend the half-wave dipole to form an open circular loop. This configuration is known as an HO loop or halo antenna.