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US 2008/0165073 A1Published application
Omni-directional high gain dipole antenna
AssigneeSmartAnt Telecom Co., Ltd.
InventorKeng-Hung Chou
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Abstract
An omni-directional high gain dipole antenna includes a first rod antenna portion, a first helical antenna portion, a second rod antenna portion, a second helical antenna portion, and an impedance matching portion. The helical antenna portions having different helical pitches are serially-connected to the rod antenna portions, so as to prolong an antenna array distance of the dipole antenna. The serially-connected impedance matching portion adjusts a line impedance value of the dipole antenna, so as to enhance a radiation field pattern gain of the dipole antenna.
Claims8
An omni-directional high gain dipole antenna, comprising:
- a first rod antenna portion;
- a first helical antenna portion, connected to the first rod antenna portion, and having a first helical pitch;
- a second rod antenna portion, connected to the first helical antenna portion;
- a second helical antenna portion, connected to the second rod antenna portion, and having a second helical pitch;
- and
- an impedance matching portion, connected to the second helical antenna portion, for matching a line impedance of the dipole antenna.
3 more elements
Dependencies are inferred from the claim text.