American Tower has been granted a patent for a tunable passband filter with a signal input port, signal output port, high-pass sections with tunable MEMS switch arrays, and a low pass section with tunable MEMS bridge arrays. The filter is designed to effectively filter input RF signals to produce filtered output RF signals. GlobalData’s report on American Tower gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on American Tower, was a key innovation area identified from patents. American Tower's grant share as of May 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.
Tunable passband filter for input rf signal
A recently granted patent (Publication Number: US11955946B2) discloses a tunable passband filter designed to filter radio frequency (RF) signals. The filter comprises a first high-pass section with a tunable microelectromechanical system (MEMS) switch array, a second high-pass section with another tunable MEMS switch array, and a low-pass section with tunable MEMS bridge arrays and a high impedance line. The filter is symmetrical and tunable between 27 GHz to 29 GHz, with specific capacitance ranges and performance metrics outlined for the MEMS components. The design allows for precise tuning of the filter's passband frequency and fractional bandwidth, ensuring optimal performance across various millimeter-wave frequencies.
Furthermore, the patent details a method for fabricating the tunable passband filter, emphasizing individual testing of MEMS components for operability before assembly. Testing is conducted at specific frequencies to ensure functionality and stability, with controlled bias voltages applied during testing stages. The method includes tuning the passband frequency and adjusting the fractional bandwidth of the filter through biasing of the MEMS bridge arrays and switch arrays. The rigorous testing process and precise tuning mechanisms outlined in the patent highlight the reliability and performance capabilities of the tunable passband filter, making it suitable for applications requiring high-frequency signal filtering and modulation in the millimeter-wave range.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
