STTR Phase I: Universal Wireless Channel Selection Filter for Enhanced Access to RF Spectrum

STTR 第一阶段：通用无线信道选择滤波器，增强对射频频谱的访问

• 批准号: 1216908
• 负责人: Vrinda Haridasan
• 金额: $ 15万
• 依托单位: Physical Devices LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-07-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1216908&HistoricalAwards=false
• 关键词: STTR; Phase; Universal; Wireless; Channel

This Small Business Technology Transfer (STTR) Phase I project will investigate an ultra-wideband tunable radio frequency filter for use as a universal channel selection filter to maximize spectrum utilization. The research during Phase I will focus on high fidelity modeling of a tunable phase shifter design to provide high linearity, low insertion loss and efficient power utilization. It will also focus on circuit design for continuously tunable cancellation of distortion to fabrication of the circuit in CMOS in a design that will provide linear operation at input high power, independent of signal modulation, coding or channel frequency. The goal is design of a circuit that can be miniaturized for integration in hand held devices of all types to provide continuously tunable reception initially from 700 MHz to 3 GHz, and with a channel bandwidth tunable to 20 MHz and more to support current and pending, as well as legacy, wireless communications standards. The broader impact/commercial potential of this project is it will maximize the carrying capacity of the wireless spectrum, enabling its efficient utilization at frequencies from White Space to WiFi. In addition to benefitting consumer communications, it will also benefit research and technical education, as well as biomedical care by providing continuously tunable RF filters for such instruments. Continuously tunable center frequency will allow smart phones and other software defined radios to use any frequency, by contrast with the limited channel selection provided by the switched filter banks in use today. The distortion cancellation capability will enable linear operation at high input power, such as in receiving OFDM signals from a nearby tower, preventing dropped calls and increasing quality of service. The net result will be to maximize simultaneous users and increase their quality of service while reducing the size, weight and complexity of handheld devices and increasing their reliability, helping the industry meet consumer expectations and aiding continuing growth of wireless industry, which shipped over 500 million smart phones in 2011.

该小型企业技术转让(STTR)第一阶段项目将研究一种超宽带可调射频过滤器，用作通用频道选择过滤器，以最大限度地提高频谱利用率。第一阶段的研究将集中于可调移相器设计的高保真建模，以提供高线性度、低插入损耗和高效功率利用。它还将专注于电路设计，用于连续可调地消除失真，以制造CMOS电路，其设计将在输入高功率时提供线性操作，而与信号调制、编码或通道频率无关。我们的目标是设计一种可小型化的电路，以便集成到所有类型的手持设备中，以提供最初从700 MHz到3 GHz的连续可调接收，并具有可调至20 MHz或更高的信道带宽，以支持当前和待定的以及传统的无线通信标准。该项目更广泛的影响/商业潜力是，它将最大限度地提高无线频谱的承载能力，使其能够在从白色空间到WiFi的频率上有效利用。除了使消费者通信受益外，它还将通过为这类仪器提供连续可调的射频滤波器，使研究和技术教育以及生物医学护理受益。连续可调的中心频率将允许智能手机和其他软件定义的无线电使用任何频率，与目前使用的开关滤波器组提供的有限频道选择形成对比。失真消除能力将在高输入功率下实现线性操作，例如从附近的塔接收ofdm信号，防止掉话并提高服务质量。最终结果将是最大限度地提高同步用户和提高他们的服务质量，同时降低手持设备的尺寸、重量和复杂性并提高其可靠性，帮助行业满足消费者的期望，并有助于无线行业的持续增长，2011年智能手机出货量超过5亿部。