Silicon Laboratories has been granted a patent for an apparatus that includes a wideband multi-band matching balun with passive components for simultaneous balun and impedance matching in multiple bands. The technology utilizes three-element frequency-dependent resonators (TEFDR) to provide inductor or capacitor functionality with frequency-dependent characteristics. GlobalData’s report on Silicon Laboratories 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 Silicon Laboratories, Low Energy IoT network protocols was a key innovation area identified from patents. Silicon Laboratories's grant share as of February 2024 was 76%. Grant share is based on the ratio of number of grants to total number of patents.
Wideband multi-band matching balun using passive components
A recently granted patent (Publication Number: US11916514B2) discloses an innovative apparatus designed to enhance radio-frequency (RF) performance. The apparatus includes a wideband multi-band matching balun that utilizes passive components to provide simultaneous balun and impedance matching functionality across multiple bands. This wideband multi-band matching balun comprises a multi-band balun with at least one three-element frequency-dependent resonator (TEFDR) and a differential-to-differential matching circuit that includes TEFDRs. These components offer the functionality of an inductor with frequency-dependent inductance or a capacitor with frequency-dependent capacitance, improving the overall efficiency of the RF apparatus.
Furthermore, the apparatus features specific configurations, such as four TEFDRs in the multi-band balun and two TEFDRs in the differential-to-differential matching circuit. The differential-to-differential matching circuit includes additional components like an inductor and a capacitor coupled in series. The TEFDRs within the apparatus can be designed in various setups, such as two inductors coupled to one capacitor or one inductor coupled to two capacitors. The multi-band balun operates effectively across different frequency bands, including a lower band of 310-510 MHz and a higher band of 780-950 MHz. By utilizing these innovative components and configurations, the apparatus aims to optimize RF performance and provide efficient balun and impedance matching capabilities in diverse frequency ranges.
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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.
