Adjustable antenna array and electronic apparatus
An adjustable antenna array and an electronic apparatus are provided. The adjustable antenna array includes: a first substrate and a second substrate opposite to each other, and antenna sub-arrays in an array. Each of at least some antenna sub-arrays includes a phase shifter, a power division feeding network, and a plurality of radiating units. The phase shifter and the power division feeding network are between the first substrate and the second substrate. At least some radiating units are connected to the phase shifter through the power division feeding network. Antenna patterns corresponding to the plurality of radiating units at least include patterns on a side of the second substrate away from the first substrate. An area of an orthographic projection of the power division feeding network on the first substrate is smaller than an area of an orthographic projection of the phase shifter on the first substrate.
1 . An adjustable antenna array, comprising:
a first substrate and a second substrate opposite to each other, and a plurality of antenna sub-arrays;
wherein each of at least some of the plurality of antenna sub-arrays comprises a phase shifter, a power division feeding network, and a plurality of radiating units, the phase shifter and the power division feeding network are between the first substrate and the second substrate, at least some of the plurality of radiating units are connected to the phase shifter through the power division feeding network, an antenna pattern corresponding to the plurality of radiating units at least comprises a partial pattern on a side of the second substrate away from the first substrate;
wherein the power division feeding network comprises a first-stage power division feeding network and a second-stage power division feeding network, output ports of the first-stage power division feeding network are connected to the plurality of radiating units, an input port of the first-stage power division feeding network is connected to one output port of the second-stage power division feeding network, and an input port of the second-stage power division feeding network is connected to the phase shifter.
2 . The antenna array of claim 1 , wherein an input port of the power division feeding network is connected to the phase shifter, and a plurality of output ports of the power division feeding network are in one-to-one correspondence with the corresponding radiating units.
3 . The antenna array of claim 2 , wherein the plurality of output ports in each power division feeding network have a same line length and a same line width.
4 . The antenna array of claim 1 , wherein the adjustable antenna array comprises three or more radiating units, two or more power division feeding networks, and the number of output ports of each of the two or more power division feeding networks is less than the number of plurality of radiating units.
5 . The antenna array of claim 3 , wherein the two or more power division feeding networks have a same number of output ports.
6 . The antenna array of claim 1 , wherein the first-stage power division feeding network comprises two output ports and the second-stage power division feeding network comprises two output ports.
7 . The antenna array of claim 6 , wherein the number of the plurality of radiating units is even-numbered, and every two radiating units are connected to the output ports of one corresponding first-stage power division feeding network, respectively.
8 . The antenna array of claim 7 , wherein the plurality of radiating units comprise four radiating units, and the power division feeding network comprises two first-stage power division feeding networks and one second-stage power division feeding network; and
two adjacent radiating units are respectively connected to the output ports of one first-stage power division feeding network, and the other two adjacent radiating units are respectively connected to the output ports of the other first-stage power division feeding network, and the input ports of the two first-stage power division feeding networks are respectively connected to the output ports of the second-stage power division feeding network.
9 . The antenna array of claim 7 , wherein the plurality of radiating units comprise four radiating units, and the power division feeding network comprises one first-stage power division feeding network and one second-stage power division feeding network; and
the first two adjacent radiating units are respectively connected to the output ports of the first-stage power division feeding network, the input port of the first-stage power division feeding network and one of the other two radiating units are connected to the output ports of the second-stage power division feeding network, and the other one of the other two radiating units is directly connected to the other phase shifter.
10 . The antenna array of claim 6 , wherein the number of the plurality of radiating units is odd-numbered, each pair of two radiating units are respectively connected to the output ports of one corresponding first-stage power division feeding network, and one remaining radiating unit is connected to one output port of one corresponding second-stage power division feeding network.
11 . The antenna array of claim 10 , wherein the plurality of radiating units comprise three radiating units, and the power division feeding network comprises one first-stage power division feeding network and one second-stage power division feeding network; and
two adjacent radiating units are connected to the output ports of the first-stage power division feeding network, respectively, and the input port of the first-stage power division feeding network and the remaining radiating unit are connected to the output ports of the second-stage power division feeding network.
12 . The antenna array of claim 1 , wherein the plurality of radiating units are arranged side-by-side.
13 . The antenna array of claim 1 , wherein the plurality of radiating units are single-polarized structures with a same polarization direction, and each single-polarized structure comprises any one of vertical polarization, horizontal polarization, +45° polarization, −45° polarization, right-hand circular polarization and left-hand circular polarization.
14 . The antenna array of claim 1 , wherein each radiating unit is a dual-polarization structure having two different polarization directions, and the dual-polarization structure comprises any one of vertical-horizontal dual-polarization, ±45° dual-polarization, and left-right circular dual-polarization.
15 . The antenna array of claim 14 , wherein the plurality of radiating units comprises a first radiating unit and a second radiating unit, the power division feeding network comprises a first power division feeding network and a second power division feeding network, the phase shifter comprises a first phase shifter and a second phase shifter, output ports of the first power division feeding network are connected to the first radiating unit and the second radiating unit, respectively, an input port of the first power division feeding network is connected to the first phase shifter through a first feeding line, output ports of the second power division feeding network are connected to the first radiating unit and the second radiating unit, respectively, and an input port of the second power division feeding network is connected to the second phase shifter through a second feeding line.
16 . The antenna array of claim 15 , wherein the first phase shifter, the first feeding line, the first power division feeding network, the second phase shifter, the second feeding line, and the second power division feeding network are formed by patterns of metal layers on a same substrate in a same layer and having a same thickness.
17 . The antenna array of claim 1 , further comprising a ground electrode on a side of the first substrate away from the second substrate, and an orthographic projection of each radiating unit on the first substrate completely falls within an orthographic projection of the ground electrode on the first substrate, so that an electromagnetic wave signal received by the adjustable antenna array on the side of the second substrate away from the first substrate is reflected from the same side of the second substrate away from the first substrate by the ground electrode.
18 . The antenna array of claim 1 , wherein the antenna pattern further comprise another partial pattern on a side of the first substrate away from the second substrate, and orthographic projections of the another partial pattern and the partial pattern on the first substrate at least partially overlap with each other, so that an electromagnetic wave signal received by the adjustable antenna array on the side of the second substrate away from the first substrate is transmitted through the side of the first substrate away from the second substrate.
19 . An electronic apparatus, comprising: the adjustable antenna array of claim 1 .