Composite Polarization Antenna Groups for Notebook Signal Reliability
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Solution Overview
Problem
Portable electronic devices, such as notebook computers, face challenges in optimally arranging and utilizing multiple antennas due to their varying positions during use, especially when the device's lid is folded, rotated, or used as a drawing board, affecting signal reception and communication efficiency.
Innovation Solution
The electronic device employs two antenna groups with radiation elements of different polarizations and gains, connected to beam forming networks and an output selector, which create composite radiation patterns and combine signals to enhance signal strength, particularly for signals with altered polarization due to propagation effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas are arranged in the lid of a notebook computer to support MIMO and diversity reception, then communication capability and signal reception are improved, but the antennas cannot maintain optimal positions when the lid is folded, rotated, or flipped, causing degradation in signal reception
Solution Approach 1:
The patent implements dynamic beam forming that adapts to different lid positions and orientations. The beam forming networks dynamically adjust the phase and amplitude of signals from multiple radiation elements to maintain optimal radiation patterns regardless of whether the lid is folded, rotated, or flipped, thus maintaining reliable signal reception across various device configurations
Solution Approach 2:
The antenna groups are designed with multi-functional capability to serve multiple communication modes (MIMO, diversity reception) and to effectively operate across various lid positions. The composite polarization capability allows the same antenna structure to handle both vertically and horizontally polarized signals, making the system universally effective regardless of device orientation
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 configuration allows for improved signal reception with composite polarizations, enabling better handling of signals that have undergone polarization changes, thereby enhancing communication efficiency in devices like notebook computers, PDAs, and cellular telephones.
Implementation Method 1
each of said groups has a beam forming network which is connected to the radiation elements of the group
Implementation Method 2
the first and second radiation elements in each group have first and second respective polarizations and gain
Implementation Method 3
radiation elements of a respective first and second polarization and gain
Data Source
AI summary
An electronic device (200,300) comprising an antenna arrangement with first and second antenna groups with first (122, 142) and a second (124, 144) radiation elements. The first and second radiation elements in each group have first and second respective polarizations and gain, and said groups also comprise a beam forming network (126, 146) connected to the radiation elements of the group and to an output selector (150). The beam forming network (126, 146) of each antenna group uses the radiation elements (122, 124; 142, 144) in the group to create a radiation pattern (127, 147) with a polarization which is a composite of the first and second polarizations of the elements in the group, so that a first (127) and a second (147) radiation pattern of composite polarization is created. The output selector (150) selects or combines signals received by the two antenna groups as its output.