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US 12,255,375 B2Granted
AU and RU having CWG filters, and BS having the AU or RU
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsYongbin Liu, Juandi Song, Yuhua Xiao, Ying Li
Life of this patent
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Abstract
An antenna unit, a radio unit, and a base station are disclosed. The antenna unit or the radio unit includes a plurality of filters, each having a respective radio frequency passband. At least one first filter is a CWG filter. The first filter is coupled to a second filter through a T-junction formed on an antenna board or a radio mother board.
Claims16
An antenna unit comprising:
- an antenna board comprising a plurality of antenna elements and one or more antenna ports coupled to the plurality of antenna elements;
- and
- a plurality of filters having a respective plurality of radio frequency passbands, wherein:
- a first one of the plurality of filters is a ceramic waveguide (CWG) filter,
- the first filter is coupled to a second one of the plurality of filters through a T-junction formed on one of the following boards:
- the antenna board, or another board comprising the antenna unit, and
- the T-junction is also coupled to one of the one or more antenna ports.
4 more elements
A radio unit comprising:
- a radio mother board (MOB) including a power amplifier;
- and
- a plurality of filters having a respective plurality of radio frequency passbands, wherein:
- a first one of the plurality of filters is a ceramic waveguide (CWG) filter,
- the first filter is coupled to a second one of the plurality of filters through a T-junction formed on the radio MOB, and
- the T-junction is also coupled to the power amplifier,
- wherein the T-junction is a microstrip line or a strip line.
4 more elements
Dependencies are inferred from the claim text.