Multilayer miniaturized microstrip antenna

Communications: radio wave antennas – Antennas – Microstrip

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343846, H01Q 138

Patent

active

054500907

ABSTRACT:
The present invention provides a miniaturized multilayer microstrip antenna that includes a stack of antenna sub-stacks, a ground element, and a plurality of electrically conductive segments. Each of the antenna sub-stacks includes a pair of substantially parallel outer principal faces. A sandwich of two relatively thin electrically non-conductive substrate elements, separated by a relatively thin electrically conductive layer, extends between each pair of parallel outer principal faces. The electrically conductive layer has at least one void region through which an electrically conductive feedthrough element extends. The feedthrough element also extends between the outer principal faces. The ground element electrically couples the conductive layers of each of the antenna sub-stacks. The electrically conductive segments are positioned between adjacent principal faces of two adjacent antenna sub-stacks in the stack, and electrically connect the feedthrough elements of the adjacent antenna sub-stacks, thereby establishing a first continuous elongated antenna element.

REFERENCES:
patent: 4131893 (1978-12-01), Munson et al.
patent: 4980694 (1990-12-01), Hines
patent: 5006858 (1991-04-01), Shirosaka
Kieth R. Carver and James W. Mink, Microstrip Antenna Technology, IEEE Transactions on Antennas and Propagation, vol. AP-29, No. 1, Jan. 1981.

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