This Texas Instruments application note explains key antenna parameters, types, and design considerations for short‑range device applications.
The document introduces the most important antenna parameters for short‑range device (SRD) designs, such as radiation pattern, gain, impedance matching, bandwidth, size and cost. It also covers basic antenna theory, the Friis transmission equation, and practical measurement techniques.
It then reviews the main antenna families—PCB, chip, whip and wire antennas—detailing their pros and cons, typical cost, and design trade‑offs. Reference designs, additional resources, and a list of antenna suppliers are provided for engineers needing ready‑made solutions or further guidance.
| Typical chip antenna cost | $0.10–$1.00 per part |
|---|
The most common types are PCB antennas, chip antennas, whip antennas with a connector, and wire antennas.
Lowering the operating frequency increases the physical size of the antenna.
A chip antenna typically costs between $0.10 and $1.00 per unit.