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US 2022/0037754 A1Published application
Filter including a folded structure resonator filter
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsChunyun JIAN, Mi ZHOU
Life of this patent
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Abstract
A radio frequency filter is disclosed. According to one aspect, the filter includes N stacked planar dielectric layers, N being an integer greater than 1. The filter also includes a first pair of coupled stripline resonators lying in a plane between 5 a first pair of planar dielectric layers. The filter also includes an outermost ground plane on either side of the stack of N stacked planar dielectric layers.
Claims21
A filter comprising:
- a plurality of stripline resonators, each stripline resonator lying in a plane in parallel with a first plane of a three-dimensional rectangular coordinate system, and inductively coupled to another stripline resonator of the plurality of stripline resonators;
- a first plurality of ground planes oriented in parallel to the first plane, at least a first ground plane of the first plurality of ground planes being a first outermost ground plane and having a first window therein;
- and
- a first input/output port having a conductor electrically connected to a first stripline resonator of the plurality of stripline resonators, the conductor extending perpendicularly away from the first stripline resonator of the plurality of resonators toward the first window in the first outermost ground plane.
1 more element
A radio frequency, RF, filter, comprising:
- N stacked planar dielectric layers, N being an integer greater than 1;
- a first pair of coupled stripline resonators lying in a plane between a first pair of planar dielectric layers;
- and
- an outermost ground plane on either side of the stack of N stacked planar dielectric layers.
1 more element
Dependencies are inferred from the claim text.