Abstract: In this letter, planar bifilar helical antennas with varied turns for ultrahigh-frequency radio frequency identification (RFID) tags are proposed. The bifilar helix, formed using printed ...

Abstract: In modern communication system, electromagnetic equipment is centralized arranged, near-field coupling effect among the various radio communication antennas cannot be ignored. In this paper, ...

Discover how to build a powerful DIY directional Wi-Fi antenna from simple materials, including metal jar lids and a threaded rod, to boost your laptop’s Wi-Fi reception. This detailed step-by-step ...

Software-defined radio is often treated as a software exercise. This book takes a different view. Build Your Own Software Defined Radio shows how real RF signal paths are built, measured, and improved ...