US 12,412,972 B2
Wideband balun arrangement
David Gustafsson, Sävedalen (SE); Per Ingelhag, Alingsås (SE); and Mingquan Bao, Västra Frölunda (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 18/265,669
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Dec. 7, 2020, PCT No. PCT/EP2020/084906
§ 371(c)(1), (2) Date Jun. 6, 2023,
PCT Pub. No. WO2022/122114, PCT Pub. Date Jun. 16, 2022.
Prior Publication US 2024/0079754 A1, Mar. 7, 2024
Int. Cl. H01P 5/10 (2006.01)
CPC H01P 5/1007 (2013.01) 17 Claims
OG exemplary drawing
 
1. A balun arrangement comprising a slot at least partially having a crossing slot width (ws, hs) running between a first longitudinal side and a second longitudinal side in at least a first metallization layer, where the balun arrangement further comprises:
an unbalanced first port (P1) that is defined between a first electrical connection to the second longitudinal side of the slot and a fourth electrical connection to the first longitudinal side of the slot,
a balanced second port (P2) that is defined between a second electrical connection to the second longitudinal side of the slot and a fifth electrical connection to the first longitudinal side of the slot, and
a balanced third port (P3) that is defined between a third electrical connection to the first longitudinal side of the slot and a sixth electrical connection to the second longitudinal side of the slot, wherein:
the first electrical connection runs from a first type terminal (+) of the first port (P1) to a first ground connection at the second side of the slot, and the fourth electrical connection runs from a second type terminal (−) of the first port (P1) to a fourth ground connection at the first longitudinal side of the slot,
the second electrical connection runs from a first type terminal (+) of the second port (P2) to a second ground connection at the second side of the slot, and the fifth electrical connection runs from a second type terminal (−) of the second port (P2) to a fifth ground connection at the first longitudinal side of the slot, and
the third electrical connection runs from a first type terminal (+) of the third port (P3) to a third ground connection at the first longitudinal side of the slot, and the sixth electrical connection runs from a second type terminal (−) of the third port (P3) to a sixth ground connection at the second side of the slot.