1. Three-Dimensional Layout Technology:

Deploy multiple functional units in the signal transmission circuit on different surfaces of the support frame so that they are not in the same plane, improve space utilization, and make the feeding network structure more compact.

2. Application Of New Transmission Lines:

Use new transmission lines such as composite left-right-handed transmission lines (CRLH-TL). This type of transmission line has unique electromagnetic characteristics, and its large phase constant characteristics can be used to achieve miniaturization while ensuring the equal amplitude, same phase and broadband characteristics of signal transmission.

3. Multi-Layer Structure Design:

By designing a multi-layer feeding network structure, such as multi-layer gap waveguide and multi-layer ridge gap waveguide network, signal transmission channels and functional modules are added in a limited space to achieve miniaturization and high performance.

4. Integration Technology:

Using semiconductor integration technology or microwave integration technology, various components in the feeding network, such as power dividers, phase shifters, couplers, etc., are integrated on a chip or a small circuit board, which greatly reduces the volume of the feeding network.