Communications: radio wave antennas – Antennas – Microstrip
Patent
1995-03-31
1997-08-12
Hajec, Donald T.
Communications: radio wave antennas
Antennas
Microstrip
343767, 343770, 343702, H01Q 138
Patent
active
056570287
ABSTRACT:
A module (1') adapted for insertion into a data processor (2). The module includes an interface (40) for electrically coupling the module to the data processor, a modem (42) that is bidirectionally coupled to the interface, an RF energy transmitter (44) having an input coupled to an output of the modem, an RF energy receiver (46) having an output coupled to an input of the modem, and a partially shorted, dual C-patch antenna (20) that is electrically coupled to an output of the RF energy transmitter and to an input of the RF energy receiver. The partially shorted, dual C-patch antenna is comprised of a truncated ground plane (22), a layer of dielectric material (28) having a first surface overlying the ground plane and an opposing second surface, and an electrically conductive layer (30) overlying the second opposing surface of the dielectric layer. The electrically conductive layer forms a radiating patch and has a rectangularly shaped aperture having a length that extends along a first edge of the electrically conductive layer and a width that extends towards an oppositely disposed second edge. The length has a value that is equal to approximately 20% to approximately 35% of a length of the first edge. The antenna further includes electrically conductive vias or feedthroughs (24) for shorting the electrically conductive layer to the ground plane at a region adjacent to a third edge (20a) of the electrically conductive layer.
REFERENCES:
patent: 4040060 (1977-08-01), Kaloi
patent: 4072951 (1978-02-01), Kaloi
patent: 4125837 (1978-11-01), Kaloi
patent: 4138684 (1979-02-01), Kerr
patent: 4291312 (1981-09-01), Kaloi
patent: 4356492 (1982-10-01), Kaloi
patent: 4590478 (1986-05-01), Powers et al.
patent: 4812855 (1989-03-01), Coe et al.
patent: 4980694 (1990-12-01), Hines
patent: 5220335 (1993-06-01), Huang
patent: 5373149 (1994-12-01), Rasmussen
patent: 5420596 (1995-05-01), Burrell et al.
Bahl et al. Microstrip Antennas, published by Artech House, Inc., Dedham, MA, 1980, pp. 4-6.
Luk et al., Patch Antennas on a Spherical Body, IEEE Proc. H, vol. 138, No. 1, Feb. 1991, pp. 103-108.
"Study of multilayer microstrip antennas with radiating elements of various geometry", J.P. Damiano, et al., IEE Proceedings, vol. 137, Pt.H. No. 3, Jun. 1990.
"A New Stacked Microstrip Antenna With Large Bandwidth And High Gain", H. Legay and L. Shafai, 1993 International Symposium Digest Antennas and Propagation, vol. 2.
"Improved Bandwidth Of Microstrip Antennas Using Parasitic Elements", C. Wood B.Sc. IEE Proc., vol. 127, Pt. H. No. 4, Aug. 1980.
"Nonradiating Edges and Four Edges Gap-Coupled Multiple Resonator Broad-Band Microstrip Antennas", G. Kumar & K. Gupta, IEEE, vol. AP-33, No. 2, Feb. 1985.
"Compact Broadband Microstrip Antenna", C.K. Aanadan & K.G. Nair, Jul., 1986.
"Handbook of Microstrip Antennas", JR James & PS Hall, vol. 2, 8 pgs, 1989.
"The C-Patch: A Small Microstrip Element" 2 pages.
J.R. James & P.S. Hall, "Handbook of Microstrip Antennas", vol. 2, 1989 Applications in Mobile and Satellite Systems, pp. 1093-1105.
G. Kossiavas et al., "The C-Patch: A Small Microstrip Element", Dec. 15, 1988, 2 pages.
Ninth International Conf. On Antennas & Prop., vol. 1, 4-7 Apr. 1995, Sanad: "A Very Small Double C-patch Antenna Contained in a PCMCIA Standard PC Card", pp. 117-120.
IEEE Antennas & Propagation Society Int. Synposium 1994, vol. 2, 20-24 Jun. 1994, Sanad: "Microstrip Antennas on Very Small Ground Planes for Portable Communication Systems" pp. 810-813.
IEEE Transactions On Antennas & Propagation, vol. 38, No. 5, May 1990, Habashy et al.: "Input Impedance and Radiation Pattern of Cylindrical-Rectangular and Wraparound Microstrip Antennas", pp. 722-731.
Hajec Donald T.
Ho Tan
Nokia Moblie Phones Ltd.
LandOfFree
Small double C-patch antenna contained in a standard PC card does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Small double C-patch antenna contained in a standard PC card, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Small double C-patch antenna contained in a standard PC card will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-163230