Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2006-09-26
2006-09-26
Dinh, Trinh Vo (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S702000, C343S846000, C343S770000
Reexamination Certificate
active
07113133
ABSTRACT:
Provided is dual-band inverted-F antenna for GSM, DCS, and PCS bands comprising a primary radiating member including integral first and second metallic strips, a feeding point, and a first shorting point wherein a long current path is created in the first strip such that the antenna can operate in a first low frequency operating mode, and a shorting current path is created in the second strip such that the antenna can operate in a second high frequency operating mode; a secondary radiating member comprising a second shorting point; a branch line shorting strip having one grounded end and a bifurcation including a first branch connected to the first shorting point and a second branch connected to the second shorting point; and a feeding member interconnected the feeding point and a signal source. Operating frequencies of the antenna are 90 MHz and 300 MHz respectively when it operates in 3.5:1 VSWR impedance bandwidth.
REFERENCES:
patent: 6552686 (2003-04-01), Ollikainen et al.
patent: 6727854 (2004-04-01), Fang et al.
patent: 6995717 (2006-02-01), Ryu
patent: 2001/0050643 (2001-12-01), Egorov et al.
patent: 2004/0080457 (2004-04-01), Guo et al.
Chang Ping-Cheng
Chen Yi-Shein
Chiu Tsung-Wen
Hsiao Fu-Ren
Advanced Connectek Inc.
Dinh Trinh Vo
Troxell Law Office PLLC
LandOfFree
Dual-band inverted-F antenna with a branch line shorting strip does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual-band inverted-F antenna with a branch line shorting strip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual-band inverted-F antenna with a branch line shorting strip will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3566718