{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9853802","patent":{"patent_number":"US-9853802","title":"Radio frequency circuit and mobile terminal","assignee":null,"inventors":[],"filing_date":"2015-04-24T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H04L","H04B","H04B","H04B","H04L"],"num_claims":20,"abstract":"A radio frequency circuit. In the circuit, a first directional coupler receives a second transmit signal, uses a part of the second transmit signal as a third transmit signal, directly sends the third transmit signal to a first port of a circulator, and obtains a first coupling signal from the second transmit signal; the circulator outputs the third transmit signal through a second port; an impedance tuner transmits the third transmit signal to an antenna port and transmits, to the second port of the circulator, a first input signal from the antenna port; the circulator inputs the first input signal to a second directional coupler through a third port; the second directional coupler obtains a second coupling signal from the first input signal; and a controller adjusts impedance of the impedance tuner according to the first coupling signal and the second coupling signal."},"analysis":{"summary":"The Radio Frequency Circuit and Mobile Terminal patent introduces an innovative solution for optimizing radio frequency signal transmission and reception in mobile devices. The core innovation is a dynamic impedance tuning system that utilizes directional couplers, a circulator, and an impedance tuner, all managed by a controller. This system addresses the problem of signal degradation caused by impedance mismatch and interference, which can significantly impact signal quality and battery life in mobile devices. The key technical approach involves using directional couplers to monitor signal characteristics in real-time and a controller to adjust the impedance of the antenna accordingly. The circulator ensures efficient signal routing between the transmitter, receiver, and antenna.\n\nThe business value of this technology lies in its ability to improve signal quality, extend battery life, and enhance the overall user experience. These improvements can lead to increased customer satisfaction and adoption of mobile devices incorporating this technology. The market opportunity is significant, as the demand for reliable and efficient wireless communication continues to grow. This technology can be applied to a wide range of mobile devices, including smartphones, tablets, and IoT devices. The competitive advantage of this invention is its dynamic impedance tuning system, which offers superior performance compared to static impedance matching techniques. This adaptive approach ensures optimal signal transmission and reception across a wide range of operating conditions.\n\nFurthermore, the Radio Frequency Circuit and Mobile Terminal patent has the potential to impact the mobile communication industry by enabling more efficient use of spectrum resources and reducing the need for additional infrastructure. This technology can also contribute to the development of more advanced wireless communication systems, such as 5G and beyond. The innovation's focus on real-time monitoring and control aligns with the trend towards more intelligent and adaptive wireless networks. The patent highlights the importance of optimizing signal transmission and reception at the device level to achieve optimal overall network performance. The system's modular design allows it to be easily integrated into existing mobile device architectures. The technology's potential to improve battery life is particularly valuable in today's mobile-centric world.","layman_explanation":"The Radio Frequency Circuit and Mobile Terminal patent addresses a common problem in mobile devices: inconsistent signal quality and inefficient battery usage due to signal loss. Existing mobile devices often struggle to maintain a strong, clear signal because the antenna's impedance (its electrical resistance to the signal) doesn't always match the impedance of the surrounding environment. This mismatch leads to signal reflection and wasted power, resulting in dropped calls, slow data speeds, and reduced battery life.\n\nThis patent introduces a system that continuously monitors and adjusts the antenna's impedance to ensure the best possible signal transmission and reception. It's like having a smart antenna that automatically tunes itself to the optimal frequency, regardless of your location or surroundings. Imagine a musician tuning their instrument to achieve the perfect pitch; this technology does the same for your phone's antenna. The system uses components called directional couplers to measure signal characteristics, a circulator to direct signals efficiently, and an impedance tuner to make adjustments to the antenna. A controller then analyzes the measurements and instructs the impedance tuner to make the necessary adjustments.\n\nThis innovation matters because it directly impacts the user experience. By improving signal quality, users can enjoy faster data speeds, clearer calls, and more reliable connections. By reducing power consumption, users can extend their device's battery life and avoid the frustration of constantly needing to recharge. This technology also has broader implications for the mobile industry, as it can enable more efficient use of network resources and support the development of more advanced wireless communication systems. The potential ROI is significant, as mobile device manufacturers can incorporate this technology into their products to gain a competitive advantage and improve customer satisfaction.\n\nLooking ahead, this technology could be further developed to support new wireless standards and applications. As the demand for mobile data continues to grow, innovations like this will be essential for ensuring a seamless and reliable user experience. The market adoption timeline will likely depend on the willingness of mobile device manufacturers to invest in and integrate this technology into their products. The investment implications are positive, as this patent represents a valuable asset with the potential to generate significant revenue through licensing and product sales.","technical_analysis":"The Radio Frequency Circuit and Mobile Terminal patent presents a sophisticated technical architecture designed to optimize radio frequency (RF) signal transmission and reception in mobile devices. The system comprises several key components: directional couplers, a circulator, an impedance tuner, and a controller. The directional couplers are responsible for monitoring signal characteristics, providing real-time information about signal reflection and impedance mismatch. The circulator ensures efficient signal routing between the transmitter, receiver, and antenna, preventing interference and maintaining signal integrity. The impedance tuner adjusts the impedance of the antenna to match the impedance of the RF circuit, minimizing signal reflection and maximizing power transfer.\n\nThe controller employs a feedback control algorithm to continuously monitor the coupling signals from the directional couplers and adjust the impedance of the antenna using the impedance tuner. This algorithm aims to minimize signal reflection and maximize power transfer, thereby improving signal quality and efficiency. The impedance tuner typically consists of a network of varactors or other adjustable components, which can be controlled electronically. The circulator is a three-port device that directs signals from one port to the next in a circular fashion. This ensures that signals are routed to the appropriate ports, preventing interference and maintaining signal integrity. The implementation details of this patent involve careful selection of components and precise control of the impedance tuner.\n\nThe performance characteristics of the Radio Frequency Circuit and Mobile Terminal patent are determined by the accuracy of the directional couplers, the speed and range of the impedance tuner, and the effectiveness of the control algorithm. The system's ability to dynamically optimize impedance matching enables it to achieve superior performance compared to static techniques. The real-time monitoring and control capabilities ensure that the system can adapt to changing signal conditions, maintaining optimal performance across a wide range of operating environments. The integration patterns for this technology involve incorporating the RF circuit into the mobile device's RF front-end. This requires careful consideration of component placement and signal routing to minimize interference and maintain signal integrity. The patent's code-level implications involve the development of firmware and software to control the controller and manage the feedback control algorithm. This code must be optimized for performance and efficiency to minimize power consumption and ensure real-time operation.","business_analysis":"The Radio Frequency Circuit and Mobile Terminal patent presents a significant market opportunity within the mobile communication industry. The increasing demand for reliable and efficient wireless communication is driving the need for innovative solutions that can improve signal quality, extend battery life, and enhance the overall user experience. This patent addresses these needs by providing a dynamic impedance tuning system that optimizes RF signal transmission and reception in mobile devices. The market opportunity size is substantial, encompassing a wide range of mobile devices, including smartphones, tablets, IoT devices, and other wireless communication devices. The competitive advantages of this technology lie in its dynamic impedance tuning system, which offers superior performance compared to static impedance matching techniques. This adaptive approach ensures optimal signal transmission and reception across a wide range of operating conditions.\n\nThe revenue potential for this technology is significant, as it can be licensed to mobile device manufacturers or incorporated into their own products. The business models for this technology include licensing fees, royalty payments, and direct sales of RF circuits. The strategic positioning of this technology is to provide a cost-effective and high-performance solution for optimizing RF signal transmission and reception in mobile devices. This can be achieved by focusing on the key features and benefits of the technology, such as improved signal quality, extended battery life, and enhanced user experience. The ROI projections for this technology are attractive, as the investment in research and development can be recouped through licensing fees, royalty payments, and direct sales of RF circuits.\n\nThe strategic implications of this patent extend beyond individual mobile devices. As wireless networks become more densely populated and the demand for seamless connectivity increases, innovations like this will be crucial for maintaining network performance and user experience. This technology could also find applications in other wireless communication systems, such as base stations and IoT devices. The ability to dynamically optimize signal transmission and reception opens up new possibilities for improving the efficiency and reliability of wireless communication. The innovation's focus on real-time monitoring and control aligns with the trend towards more intelligent and adaptive wireless networks. The patent highlights the importance of optimizing signal transmission and reception at the device level to achieve optimal overall network performance.","faqs":null,"topics":["radio frequency circuit","mobile terminal","wireless communication","impedance tuning","directional coupler","radio","frequency","circuit"],"tech_cluster":null},"seo":{"title":"Radio Frequency Circuit and Mobile Terminal - Patent US-9853802","description":"Discover how the Radio Frequency Circuit and Mobile Terminal patent improves signal quality and battery life in mobile devices. Full patent analysis and technical details.","keywords":["radio frequency circuit","mobile terminal","wireless communication","impedance tuning","directional coupler","patent","patent US-9853802"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9853802","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9853802","citation_suggestion":"Patentable. \"Radio frequency circuit and mobile terminal\" (US-9853802). https://patentable.app/patents/US-9853802","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9853802","json":"https://patentable.app/api/llm-context/US-9853802","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T04:06:32.741Z"}