Phase shifter comprising signal and reference electrodes on a substrate and forming a gap with a plurality of spaced film-bridge electrodes

A phase shifter, comprising:

• a first substrate;
• a signal electrode, a first reference electrode, and a second reference electrode which are on the first substrate, wherein the first reference electrode and the second reference electrode are on both sides of an extending direction of the signal electrode, respectively;
• a first insulating layer covering at least a side of the signal electrode distal to the first substrate;
• and
• at least one film-bridge electrode group on a side of the first insulating layer distal to the signal electrode, wherein each film-bridge electrode group comprises a plurality of film-bridge electrodes insulated from each other, an orthogonal projection of the signal electrode on the first substrate is between orthogonal projections of the first reference electrode and the second reference electrode on the first substrate, an orthogonal projection of a bridge floor of each of the film-bridge electrodes on the first substrate partially overlaps the orthogonal projection of the signal electrode on the first substrate, an extending direction of the bridge floor of each of the film-bridge electrodes intersects the extending direction of the signal electrode;
• the bridge floor of at least one of the film-bridge electrodes and the signal electrode have a gap therebetween, and distances between bridge floors of the film-bridge electrodes in a same film-bridge electrode group and the signal electrode are different from each other;
• wherein each film-bridge electrode of each film-bridge electrode group comprises the bridge floor, and a first connecting portion and/or a second connecting portion respectively connected to both ends of the bridge floor, the orthogonal projections of the bridge floor and the signal electrode on the first substrate at least partially overlap each other, an orthogonal projection of the first connecting portion on the first substrate at least partially overlaps the orthogonal projection of the first reference electrode on the first substrate, and/or an orthogonal projection of the second connecting portion on the first substrate at least partially overlaps the orthogonal projection of the second reference electrode on the first substrate;
• and
• wherein the first connecting portion of each film-bridge electrode of each film-bridge electrode group is electrically connected to the first reference electrode, and/or the second connecting portion of each film-bridge electrode of each film-bridge electrode group is electrically connected to the second reference electrode.

A phase shifter, comprising:

• a first substrate;
• a signal electrode, a first reference electrode, and a second reference electrode which are on the first substrate, wherein the first reference electrode and the second reference electrode are on both sides of an extending direction of the signal electrode, respectively;
• a first insulating layer covering at least a side of the signal electrode distal to the first substrate;
• and
• at least one film-bridge electrode group on a side of the first insulating layer distal to the signal electrode, wherein each film-bridge electrode group comprises a plurality of film-bridge electrodes insulated from each other, an orthogonal projection of the signal electrode on the first substrate is between orthogonal projections of the first reference electrode and the second reference electrode on the first substrate, an orthogonal projection of a bridge floor of each of the film-bridge electrodes on the first substrate partially overlaps the orthogonal projection of the signal electrode on the first substrate, an extending direction of the bridge floor of each of the film-bridge electrodes intersects the extending direction of the signal electrode;
• the bridge floor of at least one of the film-bridge electrodes and the signal electrode have a gap therebetween, and distances between bridge floors of the film-bridge electrodes in a same film-bridge electrode group and the signal electrode are different from each other;
• wherein each film-bridge electrode of each film-bridge electrode group comprises the bridge floor, and a first connecting portion and/or a second connecting portion respectively connected to both ends of the bridge floor, the orthogonal projections of the bridge floor and the signal electrode on the first substrate at least partially overlap each other, an orthogonal projection of the first connecting portion on the first substrate at least partially overlaps the orthogonal projection of the first reference electrode on the first substrate, and/or an orthogonal projection of the second connecting portion on the first substrate at least partially overlaps the orthogonal projection of the second reference electrode on the first substrate;
• and
• wherein the first insulating layer further covers a side of the first reference electrode distal to the first substrate, the first connecting portion of each film-bridge electrode of each film-bridge electrode group is insulated from the first reference electrode and fixed to a surface of an overlapping portion of the first insulating layer and the first reference electrode;
• and/or
• the first insulating layer further covers a side of the second reference electrode distal to the first substrate, the second connecting portion of each film-bridge electrode of each film-bridge electrode group is insulated from the second reference electrode and fixed to a surface of an overlapping portion of the first insulating layer and the second reference electrode.