Applications of Helical Antennas

There are two types of helical antennas namely: Broadside Helical Axial (End-fire) Helical

Helical antennas are ideal for amateur satellite communications. Further detail is provided below:

Broadside Helical

Used as standard FM receiving antennas for many factory produced motor vehicles Used in most basic style of aftermarket HF and VHF mobile helical Broadside-mode helical antennas are generally used in situations where a smaller antenna is an

important operational factor. These antennas were first used with Citizen’s Band radios in the US and Australia during the late 1960s, and are widely used today as typical FM receiving antennas in automobiles.

Axial (End-fire) Helical

These types are best suited for animal tracking and space communications Most often used with hand held satellite communication devices such as telephones, radios, and

Global Positioning Systems.

Applications of Loop Antennas

A loop antenna is primarily used for AM Broadcast and the Longwave bands. The loop can be used for improving the performance of a poorly designed broadcast receiver.

Depending on the type of antenna that is in the receiver determines how the loop can be attached.

A loop when properly balanced can be used to "null down" AC Line noise, TV Sweep Harmonics, or other locally generated interference.

Loopstick antennas also work well in low-frequency applications such as RFID (card/tag readers) used in fleet management, parking gates, airports, access doors, and inventory control applications.