Network analysis can be used to solve board level issues with RF matching and layout. Often, designs only require optimization of circuit values to achieve the desired performance. For example, matching the antenna for optimal VSWR or return loss can solve poor range issues.
Radiated signals up to 18GHz and conducted to 26.5GHz can be analysed, covering multiple harmonics of most wireless systems. By using vector signal analysis, EVM and other signal metrics can be measured for popular wireless standards.
Even relatively simple 50Ω modules, attached via short tracks on a PCB to an antenna, can create a mismatch to the antenna, unless the layout is carefully considered. This can severely affect performance such as transmit power and hence the link budget will be degraded.
The process of implementing an RF transceiver is often well described by Manufacturers' application notes. It can still be very cost effective to consider a second opinion before committing to design, or even outsourcing the whole RF design to Telestrian, to keep your team focused on their core activities.
There are a number of important factors to decide before layout commences for a PCB with RF components. The designer must consider the key track widths in conjunction with the layer stack, the location of key components with their associated routing and positioning of any antennas.
The design should also incorperate provisioning for screening to protect against EMC and EMI as this is essential to successfully meet the current regulatory requirements.
If using an RF module does not meet your commercial requirement, or there is no suitable available module, then your solution may be to opt for a custom RF design.
Telestrian maintains a large selection of contacts within the RF and supporting industries, to enable Clients to have access to a complete product or service solution.