Antenna assembly and electronic device

An electronic device comprising an antenna assembly and a main board, wherein:

• the antenna assembly comprises a dielectric structure and at least one antenna module, wherein:
• the dielectric structure has a first region, a second region, and a third region connected sequentially in a preset direction, wherein the first region is configured to bring a first phase variation to a radio frequency (RF) signal, the second region is configured to bring a second phase variation to the RF signal, and the third region is configured to bring a third phase variation to the RF signal, and wherein the second phase variation is different from the first phase variation and the third phase variation;
• and
• at least one antenna module is arranged facing the dielectric structure, wherein a center of the at least one antenna module deviates by a preset distance relative to a center of the second region in the preset direction, and wherein an orthographic projection of the antenna module on the dielectric structure at least partially falls in the first region, such that a main lobe direction of a RF signal emitted by the antenna module deviates by a preset angle relative to a normal direction of the antenna module;
• and
• the antenna module further comprises a RF chip, wherein the RF chip is disposed on the main board.

An electronic device, comprising:

• a housing;
• at least one resonant structure disposed at a part of the housing;
• and
• at least one millimeter-wave (mm-wave) antenna array, wherein:
• a center of the mm-wave antenna array deviates relative to a center of the resonant structure, and an orthographic projection of the mm-wave antenna array on the housing at least partially falls in the resonant structure;
• and
• a region of the housing without the resonant structure is configured to bring a first phase variation to a mm-wave signal emitted by the mm-wave antenna array, the resonant structure and the part of the housing where the resonant structure is disposed are configured to corporately bring a second phase variation to the mm-wave signal emitted by the mm-wave antenna array, and the second phase variation is greater than the first phase variation, such that a main lobe direction of the mm-wave signal emitted by the mm-wave antenna array deviates by a preset angle relative to a normal direction of the mm-wave antenna array.