Yin Qian Phones & Addresses
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Irvine, CA
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1418 Lexington St, Tustin, CA 92782 (714) 258-8766
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Fullerton, CA
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1418 Lexington St, Tustin, CA 92782
Business Records
Name / Title
Company / Classification
Phones & Addresses
Managing
China International Travel Service LLC
Travel Service · Membership Organization
Travel Service · Membership Organization
9602 Las Tunas Dr, Temple City, CA 91780
1100 S San Gabriel Blvd, San Gabriel, CA 91776
1100 S San Gabriel Blvd, San Gabriel, CA 91776
Publications
Us Patents
Rf Front-End For Dual-Band Wireless Transceiver Module
View pageUS Patent:
20040204037, Oct 14, 2004
Filed:
Dec 11, 2002
Appl. No.:
10/318249
Inventors:
Ziming He - Irvine CA, US
Ping Peng - Irvine CA, US
Nopakorn Hiranrat - Walnut CA, US
Yin Qian - Hacienda Heights CA, US
Fusheng Chen - Bellflower CA, US
Ping Peng - Irvine CA, US
Nopakorn Hiranrat - Walnut CA, US
Yin Qian - Hacienda Heights CA, US
Fusheng Chen - Bellflower CA, US
International Classification:
H04B001/38
US Classification:
455/553100, 455/552100
Abstract:
A radio frequency (RF) front-end () employed in a dual-mode transceiver module connects a first and a second dual-band antennas (), and includes a first and a second signal receiving paths for receiving RF signals in two different frequency bands, a first and second signal transmitting paths for transmitting RF signals in the two different frequency bands, and a switch unit connecting the first and second dual-band antennas with the first and second signal transmitting and receiving paths. The switch unit includes a double pole double throw (DPDT) switch () and two single pole double throw (DPDT) switches (). The switch unit performs an antenna selection function for both the first and second transmitting paths and the first and second receiving paths.
Multi-Band Antenna
View pageUS Patent:
20040263391, Dec 30, 2004
Filed:
Jun 27, 2003
Appl. No.:
10/607778
Inventors:
Zi-Ming He - Irvine CA, US
Ping Peng - Irvine CA, US
Yin Qian - Hacienda Heights CA, US
Ping Peng - Irvine CA, US
Yin Qian - Hacienda Heights CA, US
International Classification:
H01Q001/38
US Classification:
343/7000MS
Abstract:
A multi-band antenna includes an insulative substrate () carrying a conductive element () and a coaxial cable (). The conductive element includes a first radiating patch () resonating at a first frequency band and a second radiating patch () resonating at a second frequency band. The first radiating patch is spaced from the second radiating patch by a non-conductive gap (). The coaxial cable comprises an inner conductor () and an outer conductor (). The inner conductor electrically connects with the first radiating patch. The outer conductor electrically connects with the second radiating patch. The first and the second radiating patches function as grounding means for each other. The multi-band antenna, therefore, has a simple, structure while maintains a wide-bandwidth characteristic.
Multi-Band Printed Dipole Antenna
View pageUS Patent:
20050035919, Feb 17, 2005
Filed:
Aug 15, 2003
Appl. No.:
10/641913
Inventors:
Fan Yang - Los Angeles CA, US
Ziming He - Irvine CA, US
Ping Peng - Irvine CA, US
Yin Qian - Hacienda Heights CA, US
Ziming He - Irvine CA, US
Ping Peng - Irvine CA, US
Yin Qian - Hacienda Heights CA, US
International Classification:
H01Q009/28
US Classification:
343795000
Abstract:
A multi-band printed dipole antenna () for an electronic device includes an elongate insulative substrate (), a first, second and third pairs of dipole elements () closely and parallelly disposed on the substrate, a capacitor () and a feeder cable (). The first, second and third pair of dipole elements respectively couple with the feeder cable to form a first, second and third dipole antennas. The capacitor is used to improve the impedance matching of the second dipole antenna.