US 12,413,255 B2
Transmitter arrangement, transceiver, radio communication system and method
Florent Torres, Malmö (SE); Christian Elgaard, Lund (SE); Stefan Andersson, Flyinge (SE); and Henrik Sjöland, Lund (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/919,526
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Apr. 17, 2020, PCT No. PCT/EP2020/060850
§ 371(c)(1), (2) Date Oct. 17, 2022,
PCT Pub. No. WO2021/209151, PCT Pub. Date Oct. 21, 2021.
Prior Publication US 2023/0179237 A1, Jun. 8, 2023
Int. Cl. H04B 1/04 (2006.01)
CPC H04B 1/0458 (2013.01) [H04B 2001/0408 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transmitter arrangement for radio communication, comprising:
at least two antenna elements, spaced apart by a defined distance;
a differential output amplifier with a first output coupled to a first of the at least two antenna elements and with a second inverted output coupled to a second of the at least two antenna elements;
a first transmission line element arranged between at least one of the first and second outputs and the respective one of the at least two antenna elements, the first transmission line element being configured such that signals applied to respective input taps of the at least two antenna elements are substantially in-phase with each other,
wherein the first transmission line element is configured to cause a phase shift of substantially 180° or odd multiples thereof of a center frequency of said signal applied thereto.