Ferroelectric antenna and method for tuning same

Communications: radio wave antennas – Antennas – Microstrip

Reexamination Certificate

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C343S846000

Reexamination Certificate

active

06861985

ABSTRACT:
A family of FE dielectric-tuned antennas and a method for frequency tuning a wireless communications antenna are provided. The method comprises: forming a radiator; forming a dielectric with ferroelectric material proximate to the radiator; applying a voltage to the ferroelectric material; in response to applying the voltage, generating a dielectric constant; and, in response to the dielectric constant, communicating electromagnetic fields at a resonant frequency. Some aspects of the method further comprise: varying the applied voltage; and, modifying the resonant frequency in response to changes in the applied voltage. Modifying the resonant frequency includes forming an antenna with a variable operating frequency responsive to the applied voltage. Alternately stated, forming an antenna with a variable operating frequency includes forming an antenna with a predetermined fixed characteristic impedance, independent of the resonant frequency.

REFERENCES:
patent: 3413543 (1968-11-01), Schubring et al.
patent: 3676803 (1972-07-01), Simmons
patent: 3678305 (1972-07-01), George
patent: 3836874 (1974-09-01), Maeda
patent: 3918012 (1975-11-01), Peuzin
patent: 4475108 (1984-10-01), Moser
patent: 4733328 (1988-03-01), Blazej
patent: 4799066 (1989-01-01), Deacon
patent: 4835499 (1989-05-01), Pickett
patent: 5166857 (1992-11-01), Avanic et al.
patent: 5212463 (1993-05-01), Babbitt et al.
patent: 5216392 (1993-06-01), Fraser et al.
patent: 5307033 (1994-04-01), Koscica et al.
patent: 5427988 (1995-06-01), Sengupta et al.
patent: 5450092 (1995-09-01), Das
patent: 5472935 (1995-12-01), Yandrofski et al.
patent: 5496795 (1996-03-01), Das
patent: 5557286 (1996-09-01), Varadan et al.
patent: 5561407 (1996-10-01), Koscica et al.
patent: 5589845 (1996-12-01), Yandrofski et al.
patent: 5617104 (1997-04-01), Das
patent: 5640042 (1997-06-01), Koscica et al.
patent: 5729239 (1998-03-01), Rao
patent: 5777524 (1998-07-01), Wojewoda et al.
patent: 5778308 (1998-07-01), Sroka et al.
patent: 5880921 (1999-03-01), Tham et al.
patent: 5945887 (1999-08-01), Makino et al.
patent: 5973567 (1999-10-01), Heal et al.
patent: 5973568 (1999-10-01), Shapiro et al.
patent: 5987314 (1999-11-01), Salto
patent: 6028561 (2000-02-01), Takei
patent: 6049726 (2000-04-01), Gruenwald et al.
patent: 6052036 (2000-04-01), Enstrom et al.
patent: 6097263 (2000-08-01), Mueller et al.
patent: 6160524 (2000-12-01), Wilber
patent: 6198441 (2001-03-01), Okabe et al.
patent: 6292143 (2001-09-01), Romanofsky
patent: 6333719 (2001-12-01), Varadan et al.
patent: 40 36 866 (1991-07-01), None
patent: 0 637 131 (1995-02-01), None
patent: 0 638 953 (1995-02-01), None
patent: 0 680 108 (1995-11-01), None
patent: 0 795 922 (1997-09-01), None
patent: 0 843 374 (1998-05-01), None
patent: 0 881 700 (1998-12-01), None
patent: 0 909 024 (1999-04-01), None
patent: 1 043 741 (2000-10-01), None
patent: 29-05-00 2001338839 (2001-07-01), None
patent: WO 9413028 (1994-06-01), None
patent: WO 0028613 (2000-05-01), None
patent: WO 0035042 (2000-06-01), None
patent: WO 0062367 (2000-10-01), None
patent: WO 0079645 (2000-12-01), None
patent: WO 0079648 (2000-12-01), None
A. Presser, “Varactor-Tunable, High-Q Microwave Filter,” RCA Review, vol. 42, Dec. 1981, pp. 691-705.
C. Chang and T. Itoh, “Microwave Active Filters Based on Coupled Negative Resistance Method,” IEEE Trans. on Microwave Theory and Techniques, vol. 38, No. 12, Dec. 1990, pp. 1879-1884.
P. Katzin, B. Bedard, and Y. Ayasli, “Narrow-Band MMIC Filters with Automatic Tuning and Q-Factor Control,” 1993 IEEE MTT-S Int. Microwave Symp. Digest pp. 403-406.
B. Hopf, I. Wolff, and M. Guglielmi, “Coplanar MMIC Active Bandpass Filters Using Negative Resistance Circuits,” 1994 IEEE MTT-S Symposium Digest, pp. 1183-1185.
U. Karacaoglu and I.D. Robertson, “High Selectivity Varactor-Tuned MMIC Bandpass Filter Using Lossless Active Resonators,” 1994 IEEE MTT-Symposium Digest, pp. 1191-1194.
B. Nauta, “A CMOS Transconductance-C Filter Technique for Very High Frequencies,” IEEE Journal of Solid-State Circuits, vol. 27, No. 2, Feb. 1992, pp. 142-153.
K Fujita, H. Itoh, R. Yamamoto, “A 15.6 GHz Commercially Based 1/8 GaAs Dynamic Presealer,” 1989 IEEE GaAs IC Symposium, pp. 113-116.
J. Smuk, P. Katzin, “MMIC Phase Locked L-S Band Oscillators,” 1994 IEEE GaAs Symposium Digest, pp. 27-29.
S. R. Chandler, I. C. Hunter, and J.G. Gardiner, “Active Varactor Tunable Bandpass Filter,” IEEE Microwave and Guided Wave Letters, vol. 3, No. 3, Mar. 1993, pp. 70-71.
I. C. Hunter and John D. Rhodes, “Electronically Tunable Microwave Bandpass Filters,” IEEE Trans. on MTT, vol. 30, No. 9, Sep. 1982, pp. 1354-1367.
S. Toyoda, “ Quarter-wavelength Coupled Variable Bandstop and Bandpass Filters Using Varactor Diodes,” IEEE Trans. on Mtt, vol. 30, No. 9, Sep. 1982, pp. 1387-1389.
B. Yu. Kapilevich, “Variety of Approaches to Designing Microwave Active Filters,” Proc. 27th European Microwave Conf., Jerusalem, vol. 1, 1997, pp. 397-408.
B. Yu. Kapilevich, “Understand the Operation of Channelized Active Filters,” Microwaves & RF, Jan. 1997, pp. 89-92.
M. Dishal, “Alignment and Adjustment of Synchronously Tuned Multiple Resonator-Circuit Filters” Proc. IRE 39, Nov. 1951, pp. 1448-1455.
S. B. Cohn, “Dissipation Loss in Multiple-Coupled-Resonator Filters,” Proc. IRE 47, Aug. 1959, pp. 1342-1348.
G. L. Matthaei, “An Electronically Tunable Up-Converter,” Proc. IRE 49, Nov. 1961, pp. 1703-1704.
E. G. Fubini and E.A. Guillemin, “Minimum Insertion Loss Filters,” Proc. IRE 47, Jan. 1959, pp. 37-41.
W.J. Getsinger, “Prototypes for Use in Broadbanding Reflection Amplifiers,” IEEE Trans. PTGMTT-11, Nov. 1963, pp. 486-497.
E.S. Kuh and M. Fukada, “Optimum Sunthesis of Wide-Band Parametric Amplifiers and Converters,” IRE Trans. PCCT-8, Dec. 1961, pp. 410-415.
W. J. Getsinger and G.L. Matthaei, “Some Aspects of the Design of Wide-Band Up-Converters and Nondegenerate Parametric Amplifiers,” IEEE Trans. PTGMTT-12, Jan. 1964, pp. 77-87.
R. L. Sleven, “Design of a Tunable Multi-Cavity Waveguide Band-Pass Filter,” 1959 IRE National Convention Record, Part 3, pp. 91-112.
J.J. Taub and B. F. Bogner, “Design of Three-Resonator Dissipative Band-Pass Filters Having Minimum Insertion Loss,” Proc. IRE 45, pp. 681-687 (May 1957).
K.L. Kotzebue, “Broadband Electronically-Tunable Microwave Filters,” 1960 IRE Wescon Convention Record, Part 1, pp. 21-27.
J.P. Louhos and I. Pankinaho, “Electrical Tuning of Integrated Mobile Phone Antennas,” Nokia Mobile Phones, pp. 69-97 (Sep. 15, 1999).
P. K. Panayi, M. Al-Nuaimi, and L. P. Ivrissimtzis, “Tuning Techniques for the Planar Inverted-F Antenna,” National Conference on Antennas and Propagation Publication, No. 461, pp. 259-262 (Apr. 1999).
Satoshi Makioka, et al., “A High Efficiency GaAs MCM Power Amplifier for 1.9 GHz Digital Cordless Telephones,” IEEE 1994 Microwave and Millimeter-Wave Monolithic Circuits Symposium, pp. 51-54 (1994).
V. K. Varadan, K. A. Jose, V. V. Varadan, “Design and Development of Electronically Tunable Microstrip Antennas,” IOP Publishing Ltd., pp. 238-242 (1999).
Communication Relating to the Results of the Partial International Search: PCT/IB 02/01077 (2002).
International Search Report: PCT/IB 02/01086 (Jun. 24, 2002).
International Search Report: PCT/IB 02/01078 (Jul. 10, 2002).
International Search Report: PCT/IB 02/01087 (Jul. 19, 2002).
International Search Report: PCT/IB 02/01107 (Jul. 11, 2002).
International Search Report: PCT/IB 02/01120 (Jul. 11, 2002).
International Search Report: PCT/IB 02/01098 (Jul. 4, 2002).
International Search Report: PCT/IB 02/01082 (Jul. 8, 2002).
International Search Report: PCT/IB 02/01144 (Jul. 12, 2002).
International Search Report: PCT/IB 02/01026 (Jun. 28, 2002).
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