A compact antenna apparatus for a mobile communication system includes: a radome having at least one frequency band radiating element provided therein; at least one phase shifter portion which is provided in an inner side of the radome and which is connected to the radiating element to adjust a tilting angle of the radiating element; and a rotary knob portion which is provided so as to be exposed to the outside of the radome and which is directly coupled to the phase shifter portion to drive a phase shifter.

A phase shifter includes a substrate, a transmission line on the substrate and extending in a first direction, and first and second reference electrodes respectively on both sides of an extension direction of the transmission line. The transmission line includes signal line segments, any adjacent two of which have a gap therebetween to define a connection region. The phase shifter further includes at least one phase shifting unit each including: a film bridge extending in the first direction, a connection electrode extending in a second direction, and an interlayer insulating layer on a side of the connection electrode distal to the substrate. Both ends of the connection electrode are respectively connected with the first and second reference electrodes, and an orthogonal projection of the connection electrode on the substrate is in the connection region. Both ends of the film bridge are respectively connected with adjacent two signal line segments.

The invention consists of an apparatus (1) and a method for receiving satellite positioning signals, wherein said apparatus (1) comprises an antenna array (2) comprising at least two antennae (21a,21b,21c,21d) that can receive satellite positioning signals generated by at least one constellation of artificial satellites (C), and at least two phase shifters (22a,22b,22c,22d) positioned downstream of said antennae (21a-21d), wherein the outputs of said phase shifters (22a-22d) are connected to each other by means of an output collector (23), which can be put in communication with a positioning device (4), and wherein in the output collector constructive interference can be generated between the satellite positioning signals and/or disruptive interference can be generated between the reflections of said satellite positioning signals and/or between signals coming from sources located in positions other than those of the satellites of said constellation of artificial satellites (C).

A liquid crystal phase shifter includes a first substrate and a second substrate which are disposed oppositely, and a liquid crystal layer located between the first substrate and the second substrate. A first metal film layer is disposed on a side of the first substrate facing the second substrate. A second metal film layer is disposed on a side of the second substrate facing the first substrate. The first metal film layer and the second metal film layer are both patterned metal film layers. The first substrate and the second substrate are both PCBs. The present disclosure further provides a liquid crystal antenna, including the abovementioned liquid crystal phase shifter. The present disclosure further provides a manufacturing method of the liquid crystal phase shifter.

Systems, devices, and methods related to phase shifters are provided. An example true time-delay (TTD) phase shifter structure includes a signal conductive line disposed on a first layer of the structure; a first switchable ground plane comprising a first conductive plane disposed on a second layer of the structure; a second switchable ground plane comprising a second conductive plane disposed on a third layer of the structure, where the first, second, and third layers are separate layers of the structure; a first switch coupled between the first switchable ground plane and a first ground element, the first ground element disposed on the second layer; and a second switch coupled between the second switchable ground plane and a second ground element, the second ground element disposed on the third layer.

A phase shifter includes: a first substrate; a signal electrode and a reference electrode on at least one side of an extension direction of the signal electrode; a first insulating layer covering the reference and signal electrodes; and at least one phase controlling unit above the first insulating layer. Each phase controlling unit includes a main body portion and at least one connection portion. Orthogonal projections of the main body portion and the signal electrode on the first substrate at least partially overlap each other. The main body portion and the first insulating layer have a gap therebetween, and the connection portion is connected between the main body portion and a portion of the first insulating layer covering the reference electrode. The main body portion includes first sub-electrodes short-circuited with each other, and at least some of the first sub-electrodes are connected to a same connection portion.

A phase shifter and a manufacturing method thereof and an antenna and a manufacturing method thereof are provided. The phase shifter includes: first and second substrates opposite to each other; a first electrode provided on the first substrate and configured to receive a ground signal; a second electrode provided on a side of the second substrate facing towards the first substrate; liquid crystals encapsulated between the first substrate and the second substrate and driven by the first electrode and the second electrode to rotate; and a support structure provided between the first substrate and the second substrate and including a first spacer. The first spacer is located on a side of the second electrode facing away from the second substrate, and an orthographic projection of the first spacer on the second substrate is within an orthographic projection of the second electrode on the second substrate.

Disclosed is a phase shifter arrangement for an antenna, such as a cellular antenna, that has a simplified drive mechanism. The phase shifter arrangement has two phase shifters, each with two wiper arms that are coupled at one end to a single drive shaft. Each of the wiper arms have a pivot access that may be located at or near its center such that as the drive shaft translates, it mechanically engages both wiper arms, causing them to rotate around their respective pivot axes. Certain antenna arrangements have several array faces. For example, the antenna may have three array faces, each spaced at 120 degrees of azimuth. The drive shafts for each of these array faces may operate independently to function as a multisector antenna, or they may be driven in unison to function as an omnidirectional antenna.

A system includes a remote electronic tilt phase shifter module, a motor, a mechanical linkage that connects the motor to the remote electronic tilt phase shifter module, a current management circuit that generates a motor control signal responsive to a current control signal, and a driver circuit that is configured to selectively connect the motor to a power supply in response to the motor control signal.

This application provides a phase shifter and an electrically tunable antenna including the phase shifter, where the phase shifter includes a tuning accessory, and the tuning accessory includes a tuning portion for tuning input impedance of the phase shifter. One additional capacitance or inductance parameter is added in the phase shifter by using the tuning portion, to affect input impedance of a port, to further affect a port standing wave, thereby tuning the port standing wave by using the tuning accessory. In addition, the tuning accessory in this application is a molded part with a fixed structure.