## Technical Overview: ANT-2.4-CW-RCL The **ANT-2.4-CW-RCL** is a high-performance, compact 2.4 GHz omnidirectional antenna manufactured by **Linx Technologies** (now part of TE Connectivity). It is primarily designed for space-constrained applications requiring reliable wireless communication. --- ### 1. Key Electronic Specifications The antenna is tuned specifically for the 2.4 GHz ISM band. Below are the critical electrical parameters: | Parameter | Specification | | :--- | :--- | | **Frequency Range** | 2.4 GHz to 2.5 GHz | | **Peak Gain** | 1.1 dBi | | **VSWR** | ≤ 2.0 (at center frequency) | | **Impedance** | 50 $\Omega$ | | **Wavelength** | 1/4-wave | | **Polarization** | Linear | | **Radiation Pattern** | Omnidirectional | --- ### 2. Physical and Mechanical Construction The "RCL" series is known for its **right-angle** form factor, which allows the antenna to sit flush against the side of a device enclosure. * **Connector Type:** Typically features an **RP-SMA** (Reverse Polarity SMA) or **SMA** plug. * **Design:** Monopole design, which requires a proximity to a ground plane in the host device for optimal performance. * **Housing:** Rugged, flexible plastic overmold that protects the internal radiating element from environmental impact. * **Dimensions:** Roughly 1.5 inches (38mm) in height, making it one of the smallest external right-angle antennas available. --- ### 3. Electronic Integration Requirements When integrating this part into a circuit, two electronic factors are critical: 1. **Ground Plane Dependence:** As a 1/4-wave monopole antenna, its electronic efficiency and radiation pattern are heavily influenced by the size of the device's PCB ground plane. Lack of a sufficient ground plane will increase the VSWR and reduce range. 2. **Transmission Line Matching:** The connection between the RF module and the antenna connector should be maintained at a **50-ohm characteristic impedance** to prevent signal reflection and power loss. --- ### 4. Common Applications Due to its 2.4 GHz tuning, it is compatible with several major wireless protocols: * **Bluetooth & BLE:** Ideal for IoT hubs and sensors. * **Wi-Fi:** Supports 802.11b/g/n (2.4 GHz band). * **ZigBee:** Used in home automation controllers. * **Proprietary ISM:** Any custom 2.4 GHz radio link. ---