Helical antenna having adjustable beam angle

Helical antenna manufacturing apparatus and method thereof

Helical antenna structure in a mobile terminal

Helical antenna system

Helical antenna system

Helical antenna system

Helical antenna with a built-in matching circuit

Helical antenna with adjoining insulator units

Helical antenna with connector and fabrication method of the...

Helical antenna, antenna unit, composite antenna

Helical antenna, antenna unit, composite antenna

Helical antennas

Helical band antenna

Helical coil, method of producing same and helical antenna using

Helical microstrip antenna with impedance taper

Helical type antenna and manufacturing method thereof

Helical UHF transmitting and/or receiving antenna

Helix antenna

Helix antenna

Helix antenna and method for manufacturing the same