Concurrent Mode Antenna with Hilbert Curve Radiator
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Solution Overview
Problem
Existing multiband antenna systems are bulky due to the use of multiple antennas and band pass filters, making them unsuitable for miniaturization and concurrent use of various wireless communication services on a single antenna.
Innovation Solution
A concurrent mode antenna system is developed, featuring a substrate with antennas on both sides, feeders for signal output, and a diplexer filter to separate and transfer signals across different frequency bands, utilizing radiators in a Hilbert curve form to achieve resonance in multiple frequency bands while minimizing antenna size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas and band pass filters are used to support various wireless communication services, then the system can receive and transmit signals of different frequency bands, but the system size increases and becomes unsuitable for miniaturization
Solution Approach 1:
The patent combines multiple antennas into a single integrated antenna structure that can operate across multiple frequency bands. The antenna includes a radiator with specific geometric configurations (such as folded structures or meander lines) that enable resonance at multiple frequencies, eliminating the need for separate antennas for different services.
Solution Approach 2:
The single antenna is designed to perform multiple functions by supporting various wireless communication services simultaneously. The antenna structure incorporates elements that can resonate at different frequency bands (e.g., GSM, PCS, WiMAX, WLAN, WiBro, Bluetooth), allowing one antenna to replace multiple specialized antennas.
2Adaptability or versatility
If multiple antennas are used to support concurrent wireless services, then various services can be received and transmitted simultaneously, but the device complexity increases
Solution Approach 1:
The patent merges multiple antenna functions into a single integrated structure. The antenna design includes a unified radiator configuration that can be excited at multiple frequencies, reducing the number of discrete components and simplifying the overall system architecture while maintaining concurrent service capability.
Solution Approach 2:
The antenna structure is segmented into different resonant elements or sections within the single radiator, where each segment contributes to resonance at specific frequency bands. This segmentation allows the antenna to handle multiple services simultaneously while maintaining a unified, less complex structure compared to multiple separate antennas.
3Reliability
If band pass filters are added to filter signals by frequency bands, then signal separation is improved, but the system size and device complexity increase
Solution Approach 1:
The patent combines the filtering function with the antenna structure itself. The radiator is designed with geometric features that inherently provide frequency-selective radiation and reception characteristics, integrating the band pass filter functionality into the antenna design and eliminating the need for separate filter components.
Solution Approach 2:
The antenna structure serves multiple functions simultaneously: radiation, reception, and frequency filtering. The radiator configuration provides both the radiating elements and the frequency-selective filtering characteristics, allowing a single component to perform what would traditionally require separate antennas and filters.
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
The system enables efficient reception and transmission of multiple wireless communication services on a single antenna, achieving miniaturization and concurrent operation, with improved frequency isolation and reduced size, suitable for embedding in mobile terminals.
Implementation Method 1
an antenna to produce a resonance in multi frequency bands
Data Source
AI summary
A multiband antenna system is provided. The system includes a substrate; an antenna which is disposed on a first side and a second side of the substrate, and produces a resonance in a plurality of frequency bands; a plurality of feeders which are disposed on the first side of the substrate; and a filter which is disposed on the first side of the substrate, is coupled to an end of the antenna, and transfers signals of the plurality of frequency bands output from the antenna to respective feeders of the plurality of the feeders.