Antenna apparatus having chip antenna and capacitance generating

Details Antenna apparatus having chip antenna and capacitance generating Antenna apparatus having chip antenna and capacitance generating

1996-08-22

1998-06-16

Le, Hoanganh T.

Communications: radio wave antennas

Antennas

Spiral or helical type

343702, 343873, H01Q 124, H01Q 136

Patent

active

057678170

ABSTRACT:
An antenna apparatus having a predetermined impedance is provided. The apparatus has a chip antenna including a conductor and a mounting board on which the antenna is mounted. A ground pattern and a microstrip line are formed on the board. A feeding terminal for applying a voltage to the conductor is deposited on the surface of the antenna. Solder may be used to connect the feeding terminal of the antenna to the microstrip line formed on the board. A capacitance generating device, e.g., a dielectric resin or capacitor is disposed between the microstrip line connected to the feeding terminal of the antenna and the ground pattern. A capacitance is thus generated between the microstrip line and the ground pattern thereby enabling regulation of the antenna apparatus impedance and bandwidth.

REFERENCES:
patent: 5627551 (1997-05-01), Tsuru et al.

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