Prior art — US Patent 11063625

Here is an analysis of the most relevant prior art for US patent 11063625, based on the provided patent text and its explicit discussions. The patent US11063625B2 has a priority date of August 14, 2008.

Most Relevant Prior Art for US11063625B2

The most relevant prior art patents are those that address multi-band antenna tuning, which forms a foundational concept upon which US11063625B2 builds. The patent itself highlights these references in its "Background of the Invention" and "Summary" sections when discussing the evolution of antenna technology.

U.S. Patent No. 7,369,828
- Full Citation: US7369828B2, "Electronically tunable multiple band antenna for wireless devices," issued May 6, 2008.
- Publication/Filing Date: Published: May 6, 2008. Filed: March 24, 2006.
- Brief Description: This patent, assigned to Paratek Microwave, Inc., describes a device for tuning two different cellphone antennas (one for high band and one for low band) for use on several frequency bands. Each antenna incorporates at least one active element, such as a voltage-tunable varactor, that can be adjusted via a controller to achieve desired performance for a particular frequency band.
- Potential Anticipation (35 U.S.C. § 102): US7369828B2 potentially anticipates the broad concept of an antenna operating on "multiple bands" as mentioned in claims 1, 11, and 23 of US11063625B2 (e.g., "wherein said at least one steerable antenna operates on one or multiple bands"). It teaches the use of active tuning elements to allow an antenna system to function across various frequency bands. However, it does not anticipate the core inventive features of US11063625B2, which include detecting a user or structure, determining avoidance zones, and actively steering or nulling a beam pattern of a steerable antenna, particularly at millimeter-wave frequencies (10 GHz to 500 GHz), to avoid radiating towards the user or structure.
U.S. Patent No. 7,369,829
- Full Citation: US7369829B2, "Method and apparatus for using electronically tunable multi-band antenna," issued May 6, 2008.
- Publication/Filing Date: Published: May 6, 2008. Filed: March 24, 2006.
- Brief Description: This patent, also assigned to Paratek Microwave, Inc., describes a method for transmitting and receiving RF signals from multiple frequency bands using an electronically tunable multiple band antenna. The method involves providing a high band antenna and a low band antenna, each with voltage-tunable varactors, and using a controller to apply bias voltages to these varactors for tuning.
- Potential Anticipation (35 U.S.C. § 102): Similar to US7369828B2, US7369829B2 potentially anticipates the method and system elements in claims 1, 11, and 23 of US11063625B2 that relate to an antenna "operating on one or multiple bands." It explicitly details a method for achieving multi-band operation through electronic tuning. However, US11063625B2 itself states that US7369829B2 "and other prior art have not contemplated the present invention, which allows a single antenna to be used for simultaneous transmission (or reception) for multiple bands," and further that the invention "allows a steerable antenna within a wireless device to avoid radiating towards a person or object." Therefore, US7369829B2 does not anticipate the aspects of US11063625B2 concerning user/structure detection, spatial avoidance zones, beam steering/nulling, or operation in the 10 GHz to 500 GHz frequency range.