Phase shifter assembly, cavity phase shifter with phase shifter assembly and base station antenna
The present disclosure relates to a phase shifter assembly comprising a phase shift circuit and a dielectric assembly having at least one dielectric element movable relative to the phase shift circuit for phase shifting, wherein the at least one dielectric element is disposed at a set distance from the phase shift circuit to form a gap between the at least one dielectric element and the phase shift circuit. In addition, the present disclosure also relates to a cavity phase shifter and a base station antenna.
1 . A phase shifter assembly, comprising:
a phase shift circuit configured as printed traces on a printed circuit board and a dielectric assembly having at least one dielectric element movable relative to the phase shift circuit for phase shifting, the at least one dielectric element comprising a first dielectric component and a second dielectric component on opposite sides of the phase shift circuit, wherein the first and second dielectric components abut the printed circuit board such that a first intermediate region of the first dielectric component and a second intermediate region of the second dielectric component are disposed at a set distance from the phase shift circuit to form a gap between the at least one dielectric element and the printed traces of the phase shift circuit,
wherein a hollow portion for impedance matching is provided in at least one free end region of the at least one dielectric element to expose a part of the phase shift circuit.
2 . The phase shifter assembly according to claim 1 , wherein the at least one dielectric element is disposed at a set distance from the phase shift circuit over an entire length thereof.
3 . The phase shifter assembly according to claim 1 , wherein the at least one dielectric element is configured to translationally move relative to the phase shift circuit.
4 . The phase shifter assembly according to claim 1 , wherein the phase shift circuit is configured as a metal-sheet circuit.
5 . The phase shifter assembly according to claim 1 , wherein the dielectric assembly has a plurality of dielectric elements arranged in a distributed manner.
6 . The phase shifter assembly according to claim 1 , wherein the dielectric assembly has at least one impedance-matched dielectric member fixed relative to the phase shift circuit.
7 . The phase shifter assembly according to claim 1 , wherein, in a direction perpendicular to the phase shift circuit, the gap by which the phase shift circuit is spaced apart from the at least one dielectric element is at least 0.05 mm, 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm or 0.3 mm.
8 . The phase shifter assembly according to claim 1 , wherein the at least one dielectric element is spaced apart from the phase shift circuit by a distance greater than a dimensional error of the at least one dielectric element.
9 . A cavity phase shifter comprising a phase shifter cavity, wherein the phase shifter assembly according to claim 1 is disposed in the phase shifter cavity.
10 . A base station antenna, wherein the base station antenna comprises the cavity phase shifter according to claim 9 .
11 . A phase shifter assembly, comprising:
a phase shift circuit configured as printed traces on a printed circuit board and a dielectric assembly having at least one dielectric element movable relative to the phase shift circuit for phase shifting, the at least one dielectric element comprising a first dielectric component and a second dielectric component on opposite sides of the phase shift circuit, wherein the first and second dielectric components abut the printed circuit board such that a first intermediate region of the first dielectric component and a second intermediate region of the second dielectric component are disposed at a set distance from the phase shift circuit to form a gap between the at least one dielectric element and the printed traces of the phase shift circuit,
wherein the phase shift circuit comprises a first circuit section and a second circuit section, wherein the first circuit section is provided with a first dielectric element movable relative to the first circuit section and the second circuit section is provided with a second dielectric element movable relative to the second circuit section, and wherein the dielectric constant and/or thickness of the first dielectric element is different from the dielectric constant and/or thickness of the second dielectric element.
12 . The phase shifter assembly according to claim 11 , wherein the at least one dielectric element is disposed at a set distance from the phase shift circuit over an entire length thereof.
13 . The phase shifter assembly according to claim 11 , wherein the at least one dielectric element is configured to translationally move relative to the phase shift circuit.
14 . The phase shifter assembly according to claim 11 , wherein the phase shift circuit is configured as a metal-sheet circuit.
15 . The phase shifter assembly according to claim 11 , wherein the dielectric assembly has a plurality of dielectric elements arranged in a distributed manner.
16 . The phase shifter assembly according to claim 11 , wherein the dielectric assembly has at least one impedance-matched dielectric member fixed relative to the phase shift circuit.
17 . The phase shifter assembly according to claim 11 , wherein, in a direction perpendicular to the phase shift circuit, the gap by which the phase shift circuit is spaced apart from the at least one dielectric element is at least 0.05 mm, 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm or 0.3 mm.
18 . The phase shifter assembly according to claim 11 , wherein the at least one dielectric element is spaced apart from the phase shift circuit by a distance greater than a dimensional error of the at least one dielectric element.
19 . A cavity phase shifter comprising a phase shifter cavity, wherein the phase shifter assembly according to claim 11 is disposed in the phase shifter cavity.
20 . A base station antenna, wherein the base station antenna comprises the cavity phase shifter according to claim 10 .