US 12,149,010 B2
Stacked multi-band antenna
Matti Somersalo, Vtt (FI)
Assigned to TEKNOLOGIAN TUTKIMUSKESKUS VTT OY, Espoo (FI)
Appl. No. 18/553,294
Filed by TEKNOLOGIAN TUTKIMUSKESKUS VTT OY, Espoo (FI)
PCT Filed Mar. 16, 2022, PCT No. PCT/FI2022/050168
§ 371(c)(1), (2) Date Sep. 29, 2023,
PCT Pub. No. WO2022/207969, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 20215390 (FI), filed on Mar. 31, 2021.
Prior Publication US 2024/0088566 A1, Mar. 14, 2024
Int. Cl. H01Q 9/04 (2006.01); H01Q 1/28 (2006.01); H01Q 1/38 (2006.01); H01Q 1/50 (2006.01); H01Q 19/10 (2006.01)
CPC H01Q 9/0414 (2013.01) [H01Q 1/288 (2013.01); H01Q 1/38 (2013.01); H01Q 1/50 (2013.01); H01Q 19/108 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An antenna stack comprising a ground plane and
a plurality of antenna layers comprising i) an antenna on one antenna layer and at least one antenna array on at least one different antenna layer or ii) at least two antenna arrays, each on a different antenna layer,
wherein each individual antenna layer comprises an antenna or an antenna array that operates on a frequency band that is specific to the respective antenna layer and different from frequency band or bands of other antenna layer or layers;
wherein each antenna layer has a predefined distance from the ground plane, wherein the predefined distance between the antenna or antenna array comprised on the respective antenna layer and the ground plane is defined based of the frequency band of the respective antenna or antenna array;
wherein the antenna layer comprises antenna elements manufactured by patterning conductor material on a respective flexible and/or bendable sheet of insulating material; and
wherein each antenna element on the respective antenna layer is a circularly polarized crossed dipole antenna element or a crossed dipole antenna element that is electrically configurable into any one of a circularly polarized configuration and linearly polarized configuration
by feeding a single dipole antenna element of the crossed dipole antenna element to cause a single linearly polarized configuration,
by feeding both dipole antenna elements of the crossed dipole antenna element separately to cause a dual linearly polarized configuration, and
by feeding dipole antenna elements of the crossed dipole antenna element with a 90-degree phase difference to cause a circular polarization.