What does the chip antenna do?
Chip antennas are a particular type of antenna valued for their small footprint. They are most commonly integrated in circuit boards to radiate high frequency electromagnetic waves. They have a limited range, making them optimal for small devices such as cell phones and WiFi routers.
How do ceramic patch antennas work?
As the ceramic acts as a gateway for RF signal, the larger the patch, the wider range of bands the antenna can effectively operate on. By contrast, a surface mountable antenna can work effectively on these wide frequency bands. Depending on your application, this may not pose design issues.
How are chip antennas related to the ground plane?
The other half is the ground plane of the PCB. Similar to a monopole, a chip antenna’s radiation pattern and tuning are directly related to the size and shape of the ground plane. Most datasheets will present the peak gain, bandwidth, return loss, radiation pattern, and other parameters for the antenna.
How are VIAs used in a chip antenna?
Connect the edge portion of ground planes (the ground plane surrounding the microstripline feeding the antenna to the bottom ground plane layer) with many through holes (vias). These through holes minimize the electric fields which are generated at the edge, minimizing the effects on the antenna performance.
How does a chip antenna work in a PCB?
Additionally, this antenna is designed to not require ground-plane clearance, allowing it to be mounted with components on the opposite side shielded by an interior ground plane in the PCB.
How is a ceramic chip antenna like a monopole antenna?
Furthermore, like a monopole antenna, a ceramic chip antenna’ s tuning, as well as radiation pattern, is dependent on the ground plane’s shape and size. Note: Moreover, their accompanying datasheets provide radiation patterns, bandwidth, peak gain, return loss, and other parameters for the antenna.