Multiband Antenna Merging Low and High Frequency Bands
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Solution Overview
Problem
There is a need for an antenna solution that can efficiently support both low and high frequency bands in electronic devices, particularly for high-speed wireless communication standards like WiGig, while minimizing the physical size of the apparatus to achieve slimming of electronic devices.
Innovation Solution
A multiband antenna apparatus that integrates a low frequency antenna and a high frequency antenna, where the low frequency antenna includes a wing part that operates as a ground for the high frequency antenna, and both are supported by printed circuit board substrates, enabling the transmission and reception of signals across multiple frequency bands, including 2.4 GHz, 5 GHz, and 60 GHz, with power supply connections to facilitate efficient signal emission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate antennas are used for low frequency and high frequency bands, then each antenna can be optimized for its specific frequency band, but the overall device size increases and slimming cannot be achieved
Solution Approach 1:
The patent combines low frequency and high frequency antennas into a single integrated antenna structure. The antenna includes a radiation element with specific geometric configurations that enable it to radiate both low frequency bands (2.4 GHz, 5 GHz) and high frequency bands (60 GHz) simultaneously, eliminating the need for separate antennas and reducing overall device volume.
Solution Approach 2:
The integrated antenna is designed to perform multiple functions by supporting operation across multiple frequency bands. The radiation element's geometry, including specific path lengths and configurations, allows it to function as both a low frequency antenna and a high frequency antenna, providing universal communication capability across different Wi-Fi standards (802.11a/b/g/n and 802.11ad).
2Volume of moving object
If an integrated multiband antenna is used, then device slimming is achieved and volume is reduced, but the antenna structure becomes more complex
Solution Approach 1:
The antenna structure is segmented into distinct functional portions within the radiation element. The low frequency radiation path and high frequency radiation path are separated into different segments with specific length ratios, allowing each segment to be optimized for its frequency band while maintaining a compact overall structure that reduces device volume.
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 multiband antenna apparatus allows for the simultaneous transmission and reception of low and high frequency signals, reducing the bulk size of electronic devices and enabling efficient communication across multiple bands, thereby contributing to the slimming of electronic apparatuses.
Implementation Method 1
a single wing part which emits an electric wave
Implementation Method 2
The wing part may operate as a ground of the high frequency antenna
Implementation Method 3
a high frequency antenna which transmits and receives at least one high frequency band signal, The high frequency band signal may be a frequency band signal of 60 GHz
Data Source
AI summary
A multiband antenna apparatus and an electronic apparatus having the multiband antenna apparatus are provided. The multiband antenna apparatus includes: a low frequency antenna which transmits and receives at least one low frequency band signal; and a high frequency antenna which transmits and receives at least one high frequency band signal, wherein the low frequency antenna includes a single wing part which emits an electric wave.