Johanson Technology is a renowned company specializing in the design and manufacturing of high-frequency ceramic components for the wireless communication industry. With a history dating back to 1985, the company has established itself as a trusted provider of innovative solutions for a wide range of applications including RF filters, baluns, couplers, and antennas. Johanson Technology's advanced technology and expertise enable them to deliver high-performance and reliable products that meet the demanding requirements of the rapidly evolving wireless market. Their comprehensive product portfolio caters to various wireless technologies such as Wi-Fi, Bluetooth, LTE, and 5G. Through their commitment to quality, customer satisfaction, and continuous innovation, Johanson Technology continues to be at the forefront of the wireless communication industry, playing a crucial role in enabling seamless connectivity and driving technological advancements.
RF directional couplers are electronic devices specifically designed to transfer a precise amount of electromagnetic power from one transmission line to a secondary line, allowing the signal to be utilized in another circuit. These couplers come in different types, including couplers with filters, dual-band dual-path couplers, and standard couplers, and their frequency range can extend from DC (Direct Current) up to 40 GHz. Couplers with filters are equipped with additional filtering components that help attenuate or eliminate certain frequencies, allowing for more precise power coupling in specific frequency bands. Dual-band dual-path couplers, as the name suggests, provide coupling capabilities for two different frequency bands simultaneously, enabling efficient use of RF signals in multiple circuits. The coupling factor of RF directional couplers refers to the ratio of the power transferred to the secondary line compared to the power in the main transmission line. This factor can vary, ranging from -20 dB to 49 dB, allowing for different power division ratios based on the specific requirements of the application. RF directional couplers find applications in various areas such as AGSM (Advanced Global System for Mobile Communications), AMPS (Advanced Mobile Phone System), CDMA (Code Division Multiple Access), cellular networks, DCS (Digital Cellular System), DECT (Digital Enhanced Cordless Telecommunications), E-GSM (Extended GSM), general-purpose RF systems, GSM (Global System for Mobile Communications), LTE (Long-Term Evolution), military applications, PCN (Personal Communications Network), PCS (Personal Communications Service), PDC (Personal Digital Cellular), PHP (Public Health and Social Care), S-Band Radar, telecommunications, W-CDMA (Wideband Code Division Multiple Access), wireless LAN (Local Area Network), WLAN (Wireless Local Area Network), and X-Band Radar. In summary, RF directional couplers play a crucial role in transferring specific amounts of electromagnetic power between transmission lines, enabling the utilization of RF signals in various circuits. The different types and frequency ranges of these couplers cater to a wide range of applications in telecommunications, wireless systems, radar systems, and more.