Dynamic Control of Leaky Wave Antenna Output Power
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Solution Overview
Problem
Conventional communication systems face inefficiencies in power consumption due to power-inefficient transmitters and receivers in mobile wireless devices, which significantly impact battery life.
Innovation Solution
A system and method for dynamic control of output power in leaky wave antennas, integrating them with support structures like integrated circuits and printed circuit boards, allowing for configuration of impedances and resonant frequencies to optimize RF signal transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional transmitters and receivers are used in mobile wireless devices, then communication functionality is achieved, but power consumption is high which significantly impacts battery life
Solution Approach 1:
The patent implements dynamic control of the leaky wave antenna system by tuning the resonant frequency of the leaky waveguide to match the operating frequency of the RF signal. This dynamic adaptation allows the antenna to operate at peak efficiency across different frequency bands, optimizing power consumption while maintaining communication functionality. The system dynamically adjusts the electrical length of the leaky waveguide to achieve resonance, thereby maximizing radiated power and minimizing power losses.
Solution Approach 2:
The patent changes the electrical parameters of the leaky waveguide by adjusting its effective electrical length through the inclusion of discontinuities such as capacitive gaps or inductive posts. By modifying these parameters, the resonant frequency of the leaky waveguide is tuned to match the RF signal frequency, thereby optimizing the power efficiency of the transmitter and extending battery life.
2Volume of moving object
If leaky wave antennas are integrated with support structures, then miniaturization and integration are achieved, but controlling resonant frequency and impedance becomes more complex
Solution Approach 1:
The leaky waveguide is segmented into discrete sections with controlled discontinuities (capacitive gaps or inductive posts) along its length. Each segment contributes to the overall electrical length and resonant frequency of the structure. This segmentation allows precise control of the resonant frequency and impedance characteristics while maintaining a compact integrated form factor on the support structure.
Solution Approach 2:
Discontinuities such as capacitive gaps or inductive posts are introduced as intermediary elements within the leaky waveguide structure. These intermediaries provide controlled impedance transformations and allow tuning of the resonant frequency without requiring complex external matching networks, thereby simplifying the overall system while achieving precise frequency control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances power efficiency by dynamically tuning leaky wave antennas to match resonant frequencies, reducing power consumption and extending battery life in mobile wireless devices.
Implementation Method 1
configuring one or more leaky wave antennas (400, 420, 600) to communicate wireless signals by coupling to RF power amplifiers (829) of low noise amplifiers
Implementation Method 2
A resonant frequency of the one or more enabled leaky wave antennas (400, 420, 600) may be tuned
Data Source
AI summary
Methods and systems for dynamic control of output power of a leaky wave antenna (LWA) are disclosed and may include configuring one or more LWAs in a wireless device to transmit RF signals at a desired frequency. The LWAs may be integrated in support structures, including an integrated circuit, an integrated circuit package, and/or a printed circuit board. Impedances that are coupled to the LWAs and to a power amplifier enabled to amplify the RF signals may be dynamically configured. A resonant frequency of the LWAs may be tuned, which may be configured to transmit the RF signals at a desired angle from a surface of the support structure. The LWAs may include microstrip or coplanar waveguides where a cavity height of the LWAs may be configured by controlling spacing between conductive lines in the waveguides. The impedances may include capacitor arrays and/or inductors in the support structures.