Ceramic chip antenna

Communications: radio wave antennas – Antennas – With radio cabinet

Reexamination Certificate

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Details

C343S895000

Reexamination Certificate

active

07136021

ABSTRACT:
A ceramic chip antenna for transmitting and receiving wireless signals. The antenna includes a substrate and a conductor. The substrate is made of sintered ceramic material with a low dielectric loss and a high dielectric constant. A pair of concavities is cut from both longitudinal ends of the substrate. The conductor is made of metal with a high Q factor as well as a good anti-oxidization property, being formed on surfaces of the substrate by means of mask etching or printing technology. The conductor has a circuit portion disposed on surfaces of the substrate in a meandered or helical manner, and two conducting electrodes disposed at the two concavities of the substrate and connected by the circuit portion.

REFERENCES:
patent: 5277723 (1994-01-01), Kodama et al.
patent: 5456778 (1995-10-01), Fukuta et al.
patent: 6139666 (2000-10-01), Fasano et al.
patent: 6452548 (2002-09-01), Nagumo et al.
patent: 6567049 (2003-05-01), Huang et al.
patent: 2003/0011532 (2003-01-01), Yoshinomoto et al.
patent: 2004/0108967 (2004-06-01), Fujimura et al.
patent: 513827 (2002-12-01), None
patent: 518801 (2003-01-01), None
patent: 543939 (2003-07-01), None
patent: 2000414604 (2004-08-01), None

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