Varying Impedance Antenna for Multifaceted Sensing Applications

Publication ID: 24-11857304_0002_PTD
Published: November 07, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Varying Impedance Antenna for Multifaceted Sensing Applications,” Published Technical Disclosure No. 24-11857304_0002_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857304_0002_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,304.

Summary of the Inventive Concept

This inventive concept applies the core technology of the original wearable antenna patent to various new industries, including agriculture, environmental monitoring, food safety, and industrial air quality, enabling novel sensing capabilities and applications.

Background and Problem Solved

The original patent focused on wearable devices for physiological data collection. However, the limitations of the original patent lie in its narrow application scope. The new inventive concept addresses this limitation by adapting the varying impedance antenna technology to tackle diverse challenges in different industries, such as monitoring soil moisture, tracking pesticide residues, and detecting contaminants in food products.

Detailed Description of the Inventive Concept

The new inventive concept involves integrating the varying impedance antenna technology into wearable devices or sensors for various applications. For instance, in agricultural settings, the wearable device can be adapted for use on a farming vehicle to monitor soil moisture levels, allowing for more efficient irrigation systems. In environmental monitoring, the wearable device can be used on a buoy or other aquatic platform to monitor water quality in aquatic ecosystems. The antenna's varying impedance enables it to sense electromagnetic properties of different materials, providing valuable insights in these new application areas.

Novelty and Inventive Step

The new claims introduce a novel and non-obvious application of the varying impedance antenna technology, moving beyond wearable devices for physiological data collection to tackle diverse challenges in various industries. The inventive step lies in the adaptation of the antenna technology to sense electromagnetic properties in different materials, such as soil, crops, water, and air, enabling new sensing capabilities and applications.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include using the varying impedance antenna technology in drones for aerial monitoring, in robots for industrial inspection, or in handheld devices for on-site testing. Variations could involve modifying the antenna's design, materials, or operating frequencies to optimize its performance in different environments and applications.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in various industries, including agriculture, environmental monitoring, food safety, and industrial air quality. The target market includes companies and organizations seeking innovative sensing solutions for efficient resource management, environmental sustainability, and public health protection.

Field of Art

Electromagnetic sensing technologies, specifically RF antenna design and sensor systems for wearable and environmental monitoring devices

Person of Ordinary Skill (PHOSITA) Profile

An electrical engineer with expertise in antenna design, RF communications, sensor integration, and interdisciplinary applications of electromagnetic sensing technologies, typically holding a master's or PhD with 3-5 years of industry experience

Obviousness Rationale

A PHOSITA would recognize the fundamental adaptability of the varying impedance antenna technology disclosed in the source patent, understanding that its core sensing principles could be readily extended to diverse monitoring applications by modifying antenna configuration and sensing parameters. The source patent's focus on electromagnetic property sensing provides a clear technological foundation for exploring alternative domain applications. The PTD's variations represent predictable engineering adaptations that leverage the established antenna design principles.

Obvious Combinations & Variations

Source Patent Element
Wearable device with antenna for physiological data collection
PTD Variation
Agricultural monitoring device using similar antenna for soil moisture sensing
Obviousness Reasoning
Predictable extension of existing sensing technology to a related environmental monitoring context, utilizing known electromagnetic property detection techniques
Source Patent Element
Substrate-mounted antenna with varying impedance
PTD Variation
Antenna integrated into industrial monitoring equipment for air quality detection
Obviousness Reasoning
Known technique of adapting sensor design for different measurement environments, with minimal complexity in redesigning antenna geometry
Source Patent Element
Antenna capable of detecting electromagnetic properties
PTD Variation
Water quality monitoring system using varying impedance antenna on aquatic platforms
Obviousness Reasoning
Straightforward application of existing sensing principles to a new domain, representing a standard engineering design choice with predictable performance characteristics
Source Patent Element
Non-conductive cover protecting antenna in wearable device
PTD Variation
Protective encapsulation for antenna in agricultural and industrial sensing platforms
Obviousness Reasoning
Routine engineering adaptation of protective design principles across different environmental sensing contexts
Source Patent Element
Antenna with multiple geometric points and varying impedance
PTD Variation
Multi-point antenna configuration for detecting contaminants in food products
Obviousness Reasoning
Obvious implementation of existing antenna design principles, applying known electromagnetic sensing techniques to a new detection domain
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857304, a person having ordinary skill in the art would find the disclosed variations in electromagnetic sensing applications to be obvious modifications of the existing antenna technology, representing predictable engineering adaptations that do not rise to the level of non-obvious innovation. The fundamental principles of varying impedance antenna design, as established in the source patent, provide sufficient technological foundation to render the proposed alternative applications obvious to a skilled practitioner in the field.

Original Patent Information

Patent NumberUS 11,857,304
TitleRadio frequency antenna with varying impedance for wearable
Assignee(s)Amazon Technologies, Inc.