Antenna System for Wireless Devices Managing Frequency Band Interference
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Solution Overview
Problem
Current wireless communication devices face challenges in integrating baseband and RF functions for multiple wireless communication standards on a single chip, limiting their ability to support multiple standards effectively.
Innovation Solution
The development of an integrated circuit (IC) that includes a baseband processing module, network processing module, calibration processing module, receiver section, and transmitter section, along with an antenna system, which establishes and adjusts operational parameters to support multiple wireless communication protocols, including WLAN, WPAN, and WWAN, by using polarized antenna structures, selective RF filtering, and baseband processing to manage overlapping frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If baseband and RF functions for multiple wireless communication standards are integrated on a single chip, then device integration and communication efficiency are improved, but interference between overlapping frequency bands increases
Solution Approach 1:
The antenna system is divided into multiple antenna segments (first antenna segment, second antenna segment, third antenna segment) that can be independently configured. Each segment can be selectively activated or deactivated based on the required wireless communication standard, allowing the system to segment the frequency bands and reduce interference between overlapping bands while maintaining high integration on a single chip.
Solution Approach 2:
The patent implements dynamic configuration of antenna segments through configuration circuitry that can adjust which segments are active based on operational requirements. The system dynamically selects and configures appropriate antenna segments for different wireless communication standards (WLAN, WPAN, WWAN), enabling adaptive interference management while maintaining integration efficiency.
2Adaptability or versatility
If multiple antenna segments are used to support multiple wireless communication standards, then adaptability and frequency band coverage are improved, but device complexity increases
Solution Approach 1:
The antenna system is designed with universal functionality to support multiple wireless communication standards (WLAN, WPAN, WWAN) using the same antenna segments. By configuring different combinations of the first, second, and third antenna segments, the system can universally support various standards including those with overlapping frequency bands, eliminating the need for separate antenna systems for each standard.
Solution Approach 2:
The patent implements a nested configuration where antenna segments can be selectively activated or deactivated. The configuration circuitry nests multiple levels of antenna segment combinations, allowing the system to activate only the necessary segments for a given standard, thereby reducing complexity while maintaining multi-standard support capability.
3Object-affected harmful factors
If antenna segments are selectively activated or deactivated, then interference between overlapping frequency bands is reduced, but control and configuration complexity increases
Solution Approach 1:
The configuration circuitry is pre-designed with predetermined configurations for different wireless communication standards. Before operation, the system can be programmed with the appropriate antenna segment activation patterns for each standard, allowing interference reduction to be achieved through pre-established control logic rather than complex real-time decision-making.
Solution Approach 2:
The antenna system incorporates self-configuration capability where the configuration circuitry automatically selects and activates the appropriate antenna segments based on the detected or specified wireless communication standard. This self-service approach reduces the need for external complex control while achieving interference mitigation between overlapping frequency bands.
Data Source
AI summary
An antenna system includes an antenna, a transmission line, an inductor module, a tunable capacitor module, and control logic. The transmission line is coupled to the antenna and to the inductor module. The tunable capacitor module is coupled to the transmission line in accordance with a capacitance control signal to provide a desired capacitance such that inductance of the inductor module and the desired capacitance tunes the antenna system. The control logic is coupled to generate the capacitance control signal based on the operational parameters.