The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 23, 2026

Filed:

Mar. 07, 2023
Applicant:

Vaisala Oyj, Helsinki, FI;

Inventors:

Reino Keränen, Espoo, FI;

Markus Berg, Kiiminki, FI;

Tommi Tuovinen, Tyrnävä, FI;

Janne Junttila, Helsinki, FI;

Antti Kivijärvi, Helsinki, FI;

Jukka Sirola, Tampere, FI;

Petri Hautaniemi, Jokela, FI;

Assignee:

Vaisala Oyj, Helsinki, FI;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 7/35 (2006.01); H01Q 9/04 (2006.01); H01Q 19/06 (2006.01);
U.S. Cl.
CPC ...
G01S 7/352 (2013.01); H01Q 9/045 (2013.01); H01Q 19/062 (2013.01);
Abstract

An antenna assembly includes first and second feed antennas and a lens element. The first feed antenna is arranged to transmit outbound radio waves of a transmitter beam. The second feed antenna is arranged to capture a received RF signal. The lens element is arranged to collimate the transmitter beam and to focus the receiver beam. The first and second feed antennas are disposed on a conductive ground plane that is offset from a back end of the lens element by a predefined distance in direction of a center axis of the lens element. A volume between the back end of the lens element and the ground plane comprises material that has a refractive index that is smaller than that of the lens element for converging the outbound and inbound RF beams between the back end of the lens element and the first and second feed antennas.


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