Introduction to Common Antennas for Wireless Built in Modules
Release time:
2024-11-28
The common antenna types for wireless modules are simply divided into ceramic antennas or LTCC antennas, onboard antennas, monopole antennas (commonly known as rod antennas), and FPC soft material antennas, as well as other types of antennas.
The common antenna types for wireless modules are simply divided into ceramic antennas or LTCC antennas, onboard antennas, monopole antennas (commonly known as rod antennas), and FPC soft material antennas, as well as other types of antennas.
Ceramic antenna
The ceramic antennas of wireless modules are mainly based on LTCC technology, and there are also simple block ceramic antennas, such as GPS ceramic antennas.
Block ceramic antenna is a process of sintering a whole ceramic body at high temperature and then printing the metal part of the antenna onto the surface of the ceramic block.
The multi-layer antenna firing adopts the low-temperature co firing method (LTCC) to laminate and align the multi-layer ceramics, and then sinter them at high temperature. Therefore, the metal conductor of the antenna can be printed on each ceramic dielectric layer according to design needs. The LTCC antenna utilizes both high dielectric constant and multilayer characteristics, effectively reducing the antenna size. Due to the higher dielectric constant of ceramics (usually between 9-16) compared to PCB circuit boards (usually between 4-4.5), using ceramic antennas can effectively reduce antenna size.
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