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System and method for increasing the isolation characteristic of an antenna

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H01Q-009/28
  • H01Q-021/26
출원번호 US-0026665 (1998-02-20)
발명자 / 주소
  • Thompson
  • Jr. James Ernest
  • Than Po
출원인 / 주소
  • EMS Technologies, Inc.
대리인 / 주소
    King & Spalding
인용정보 피인용 횟수 : 47  인용 특허 : 7

초록

An antenna having feedback elements for improving the isolation characteristic of the antenna by generating a feedback signal that operates to cancel an undesired leakage signal coupling from an input port to an output port of the antenna system. The antenna can include a distribution network for el

대표청구항

[ What is claimed is:] [1.] An antenna system for transmitting and receiving electromagnetic signals, the antenna system comprising:a plurality of radiators;a distribution network, coupled to each of the radiators, for communicating the electromagnetic signals from and to each of the radiators; anda

이 특허에 인용된 특허 (7)

  1. Lantagne John A. (Salem NH) Powers Edwin C. (Groveland MA), Antenna isolation for continuous wave radar systems.
  2. Yarsunas George D. ; Powell Charles M., Circularly polarized horizontal beamwidth antenna having binary feed network with microstrip transmission line.
  3. Yarsunas George D. (Indian Mills NJ), Circularly polarized microcell antenna.
  4. Hogberg Shawn W. (Chandler AZ), Coupling cancellation for antenna arrays.
  5. Reece John Kenneth ; Aden John L., Folded mono-bow antennas and antenna systems for use in cellular and other wireless communications systems.
  6. Briguglio Emanuel (Bethesda MD), Microwave repeater with broadband active and/or passive isolation control.
  7. Bodley Martin R. ; Sarcione Michael G. ; Beltran Fernando ; Hartwell Haywood, Printed circuit antenna.

이 특허를 인용한 특허 (47)

  1. Liu, Ming-Yen, Antenna array.
  2. Portier, Olivier; Jacob, Gérard; Harel, Jean-Pierre, Antenna assembly device.
  3. Chen, Li; Caimi, Frank M.; Montgomery, Mark T.; Kishler, Mark W., Antenna structures and methods.
  4. Montgomery, Mark T.; Caimi, Frank M., Antenna structures and methods thereof for adjusting an operating frequency range of an antenna.
  5. Montgomery, Mark T.; Caimi, Frank M.; Chen, Li; Giometti, Robert; Rabe, Duane, Antenna structures and methods thereof for configuring an antenna structure of a communication device in transit.
  6. Caimi, Frank M.; Montgomery, Mark T.; Rabe, Duane; Chen, Li; Kishler, Mark W., Antenna structures and methods thereof for determining a frequency offset based on a measured data.
  7. Caimi, Frank M.; Montgomery, Mark T.; Kishler, Mark W.; Giometti, Bob; Weiner, Warren, Antenna structures and methods thereof that have a common operating frequency range.
  8. Caimi, Frank M.; Montgomery, Mark T.; Kishler, Mark W.; Giometti, Robert; Marshall, John, Antenna structures and methods thereof that have disparate operating frequency ranges.
  9. Choi, Oh-Seog; Moon, Young-Chan; Jeong, Heon-Jeong, Broadband dipole antenna.
  10. Ziv, Yaniv; Yona, Haim, Broadband multiple-input multiple-output antenna.
  11. Minard, Philippe; Pintos, Jean-Francois; Chambelin, Philippe, Compact antenna system.
  12. Timofeev,Igor E.; Chau,Ky Q., Crossed dipole antenna element.
  13. McDevitt, Sean P.; Rumsey, Ian S.; Mruk, Joseph; Kelly, P. Keith, Crossed-dipole antenna array structure.
  14. Jacob, Gérard; Portier, Olivier, Device for coupling and fastening a radiating element of an antenna and method of assembling an antenna.
  15. Mayer, Josef; Hefele, Jürgen; Schultheiss, Carsten; Langenberg, Jörg, Dipole type radiator arrangement.
  16. Le, Kevin; Meyer, Louis J.; Bisiules, Pete, Directed dipole antenna having improved sector power ratio (SPR).
  17. Zimmerman, Martin L., Dual-polarized radiating element with high isolation between polarization channels.
  18. Peter G. Matthews, Flat panel array antenna.
  19. Gunnels, Robert, High isolation dual polarized dipole antenna elements and feed system.
  20. Waltho, Alan E., High isolation low loss printed balun feed for a cross dipole structure.
  21. Yona, Haim; Mamo, Shay; Azulay, Snir; Ziv, Yaniv; Goldman, Ruvim, Isolation structures for dual-polarized antennas.
  22. Lovestead, Raymond L., Low cross-polarization microstrip patch radiator.
  23. Rabe, Duane; Caimi, Frank M.; Montgomery, Mark T.; Kishler, Mark W., Method and apparatus for transitioning between cell sites.
  24. Tillery, James K., Method and system for increasing the isolation characteristic of a crossed dipole pair dual polarized antenna.
  25. Marshall, John; Caimi, Frank M.; Montgomery, Mark T.; Kishler, Mark W., Methods and apparatus for selecting a communication node by exchanging messages.
  26. Marshall, John; Caimi, Frank M.; Montgomery, Mark T.; Kishler, Mark W., Methods and apparatus for selecting a communication node by monitoring signals.
  27. Montgomery, Mark T.; Caimi, Frank M.; Tornatta, Jr., Paul A.; Kishler, Mark W.; Chen, Li, Methods for reducing near-field radiation and specific absorption rate (SAR) values in communications devices.
  28. Montgomery, Mark T.; Caimi, Frank M.; Tornatta, Jr., Paul A.; Kishler, Mark W.; Chen, Li, Methods for reducing near-field radiation and specific absorption rate (SAR) values in communications devices.
  29. Montgomery, Mark T.; Caimi, Frank M.; Tornatta, Paul A.; Kishler, Mark W.; Chen, Li, Methods for reducing near-field radiation and specific absorption rate (SAR) values in communications devices.
  30. Montgomery, Mark T; Caimi, Frank M; Tornatta, Jr., Paul A; Kishler, Mark W; Chen, Li, Methods for reducing near-field radiation and specific absorption rate (SAR) values in communications devices.
  31. Montgomery, Mark T; Caimi, Frank M; Tornatta, Paul A; Kishler, Mark W; Chen, Li, Methods for reducing near-field radiation and specific absorption rate (SAR) values in communications devices.
  32. Göttl, Maximilian, Multi-band antenna with dielectric body improving higher frequency performance.
  33. Montgomery, Mark T.; Caimi, Frank M.; Kishler, Mark W., Multimode antenna structure.
  34. Montgomery, Mark T.; Caimi, Frank M.; Kishler, Mark W., Multimode antenna structure.
  35. Montgomery, Mark T.; Caimi, Frank M.; Kishler, Mark W., Multimode antenna structure.
  36. Montgomery, Mark T.; Caimi, Frank M.; Kishler, Mark W., Multimode antenna structure.
  37. Montgomery, Mark T.; Caimi, Frank M.; Kishler, Mark W., Multimode antenna structure.
  38. Montgomery, Mark T.; Caimi, Frank M.; Tornatta, Jr., Paul A.; Chen, Li, Multimode antenna structure.
  39. Montgomery, Mark T.; Caimi, Frank; Kishler, Mark W., Multimode antenna structure.
  40. Montgomery, Mark T.; Kishler, Mark W.; Chen, Li, Multimode antenna structure.
  41. Montgomery, Mark T.; Kishler, Mark W.; Chen, Li, Multimode antenna structure.
  42. Montgomery, Mark T.; Kishler, Mark W.; Chen, Li, Multimode antenna structure.
  43. Chen, III, Li; Caimi, Frank M.; Montgomery, Mark T., Multimode antenna structures and methods thereof.
  44. James Joseph Rawnick ; Randy Eugene Boozer ; Robert Charles Taylor ; William Edward Clark ; Gilbert Reeves Perkins, Patch dipole array antenna including a feed line organizer body and related methods.
  45. Payne, Robert K.; Lien, Wayne A., RF antenna with unitary ground plane and surface mounting structure.
  46. Ippolito, Joseph R., RF card with conductive strip.
  47. Ippolito, Joseph R., Radio frequency isolation card.
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