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首页> 外文会议>Proceedings of the 22nd international technical meeting of the Satellite Division of the Institute of Navigation (ION GNSS 2009) >Compact Co-Planar Dual-Band Microstrip Patch Antennas for Modernized GPS
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Compact Co-Planar Dual-Band Microstrip Patch Antennas for Modernized GPS

机译：适用于现代化GPS的紧凑型共面双频微带贴片天线

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摘要

A new navigational signal designated as L5 with a center frequency of 1176 MHz and a bandwidth of 20 MHz has been introduced as part of GPS Modernization.This new signal is in the Aeronautical Radio Navigation Service Band and will primarily benefit aviation users by allowing precision navigation when used with the existing L1 signal for ionospheric corrections.In addition,U.S.military users will be primary beneficiaries of the new M code signal with a bandwidth of 24 MHz introduced into the L1 and L2 bands.The unique feature of this code is its spectral separation from the civil signals in these two bands.New antennas will be needed to support both civil and military users of a modernized GPS system when it becomes fully operational.The L1/L5 antenna used in avionics has to meet stringent size and performance requirements imposed by the RTCA.Military antennas also need to have adequate bandwidth and gain to allow high fidelity reception of M code signals.This paper describes two new microstrip antenna designs for very compact,co-planar dual-band antennas suitable for operation in either the L1/L5 bands for civil avionics applications or in the L1/L2 bands for use in small CRPA antenna arrays used for military applications.Both antenna designs meet their expected performance requirements and offer significant advantages over conventional GPS microstrip antenna designs that are currently being used.
机译：作为GPS现代化的一部分，引入了一个新的导航信号，称为L5，中心频率为1176 MHz，带宽为20 MHz，该信号属于航空无线电导航服务频段，将通过允许精确导航而主要为航空用户带来好处当与现有的L1信号一起用于电离层校正时，美国军方用户将成为引入L1和L2频段，带宽为24 MHz的新M代码信号的主要受益者。分离这两个频段中的民用信号。现代化的GPS系统全面投入使用后，将需要新的天线来支持民航和军事用户。航空电子中使用的L1 / L5天线必须满足严格的尺寸和性能要求军用天线还需要具有足够的带宽和增益，以便能够以高保真度接收M码信号。 icrostrip天线设计用于非常紧凑的共面双频带天线，适用于民用航空电子应用的L1 / L5频段或军事应用的小型CRPA天线阵列的L1 / L2频段。满足其预期的性能要求，并提供了优于当前正在使用的常规GPS微带天线设计的显着优势。

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