Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2007-07-10
2007-07-10
Phan, Tho (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S702000, C343S756000
Reexamination Certificate
active
10907606
ABSTRACT:
A monopole-type antenna for multi- or wide-band use to transmit or receive radio frequency electromagnetic energy. A feed point, provides energy into the antenna or receives energy from the antenna. A driven radiating section includes a first top-loading element and a feed conductor that electrically connects the feed point linearly to the first top-loading element, yet with the driven radiating section not electrically connected to a grounding surface. A parasitic radiating section includes a second top-loading element and a bridge conductor that electrically connects the second top-loading element linearly to the grounding surface. When energy is then provided at the feed point and conducted to the driven radiating section, it produces a first resonance mode, coupling at least some of the energy into and exciting the parasitic radiating section to produce a second resonance mode.
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Guo et al., A Quarter-Wave U-Shaped Patch Antenna With Two Unequal Arms For Wideband And Dual-Frequency Operation, IEEE Transactions On Antennas And Propagation, vol. 50, No. 8, Aug. 2002.
Intellectual Property Law Offices
Phan Tho
Roberts Raymond E.
Tran Chuc
X-Ether, Inc,
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