Communications: radio wave antennas – Antennas – Microstrip
Patent
1996-05-08
1997-12-30
Wimer, Michael C.
Communications: radio wave antennas
Antennas
Microstrip
343702, 343846, H01Q 138
Patent
active
057036004
ABSTRACT:
A microstrip antenna (10) comprises a planar antenna radiating element (12) having at least a first major surface and a ground plane having a first major surface (16), a second major surface (18), and a third major surface (20) substantially parallel to each other. A dielectric material (14) is positioned between the planar antenna radiating element and the ground plane. The microstrip antenna further includes a first gap (36) between the first major surface (18) of the ground plane and the second major surface (16) of the ground plane and a second gap (72) between the second major surface (16) of the ground plane and the third major surface (20) of the ground plane, wherein the first and second gaps create an increased impedance bandwidth and a lower operating frequency antenna.
REFERENCES:
patent: 3605104 (1971-09-01), Weston et al.
patent: 4658266 (1987-04-01), Doty, Jr.
patent: 5181025 (1993-01-01), Ferguson et al.
patent: 5220335 (1993-06-01), Huang
patent: 5386214 (1995-01-01), Sugawara
patent: 5410749 (1995-04-01), Siwiak et al.
patent: 5420596 (1995-05-01), Burrell et al.
patent: 5483246 (1996-01-01), Barnett et al.
patent: 5559521 (1996-09-01), Evans et al.
Burrell Dennis A.
Davis, II James Talmage
Flores Mauricio
Ho Tan
Meles Pablo
Motorola Inc.
Wimer Michael C.
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