USPS Letter Logger

Taoglas antenna solution helps diagnose bottleneck in US postal system

USPS Letter LoggerBy using our unique, high performance miniature GPS Active Patch antenna (AP-12a), it finally became possible to design a sensitive GPS tracking product thin and light enough to track envelopes and packages. The United States Postal System (USPS) have such a requirement in order to identify inefficiencies or bottle necks in their system

Other miniature GPS antennas all suffer from poor gain and are highly inefficient due to their linear polarization or poor choice of dielectric material.In contrast the Taoglas AP-12A is right hand circularly polarized, providing the best efficiency in an antenna for receiving GPS signals.

Taoglas’ experience and expertise with ceramic materials means they can produce ceramic antennas with high dielectric constants. This allows them to miniaturise the products without performance compromise. Importantly Taoglas also has the ability to fine tune the antennae and align the centre frequency at the exact GPS bandwidth required for accurate and consistent operation. This process is very difficult to execute effectively for other vendors hence the lack of smaller pieces in the market.The QC operation checks every patch for centre frequency prior to shipping.

The USPS letter logger is an excellent example of how advances in miniaturization are driving GPS into more and more diverse and commercially useful applications. Taoglas is committed to providing major size reductions in high performance GPS antennas in the years ahead, beginning with the release of the AP10 series.

When housed in a standard number 10 business envelope, the G.P.S. Letter Logger flows through mail sorting and delivery systems as unnoticed as any typical piece of mail. It does this while gathering and reporting important logistical information that allows the Postal Service to analyze the efficiency of its systems.

For more see “Mail that Never Gets Lost” where the product was awarding invention of the month by Popular Science magazine