How to Choose a Bluetooth Antenna? From Patch to Ceramic — A Complete Selection Guide
When working with Bluetooth modules, many users face common frustrations: weak signal strength, short transmission range, and poor penetration through walls. This often leads to the question: Can switching to a better antenna significantly improve Bluetooth performance? The answer is yes — but only if you choose the right type. Picking the wrong antenna can result in worse signal quality, higher power consumption, or even damage to your module. This guide covers the main Bluetooth antenna types, performance comparisons, selection criteria, installation tips, and common pitfalls to help you make the right choice. 1. Main Types of Bluetooth Antennas and Their Characteristics Bluetooth operates at 2.4GHz. Different antenna structures offer unique advantages and trade-offs. Here are the most common types currently available: 1. Patch Antenna Compact, low-cost, and easy to integrate. Often used as onboard or external small antennas. 2. Ceramic Antenna Tiny chip-style ceramic ante...