Dual-Band Loop Ground Edge Antenna With Tapered Slot Radiator
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Solution Overview
Problem
Existing antenna structures are limited to a single frequency range, which is inadequate for network devices operating on multiple protocols like WiFi that have multiple operating frequencies separated by several GHz.
Innovation Solution
A dual band antenna structure combining features of loop ground edge radiating antennas and tapered slot antennas, allowing operation at two different frequency bands, specifically 2.4-2.5 GHz and 5.0-6.0 GHz, with bandwidths of at least 200 MHz and 1000 MHz, respectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional loop ground edge radiating antenna or tapered slot antenna is used, then the antenna can operate at a single frequency range, but it cannot support multiple frequency bands required by WiFi and other network protocols
Solution Approach 1:
The patent merges the loop ground edge radiating antenna and tapered slot antenna into a single integrated structure. The radiator trace is configured to form both the loop antenna around a ground clearance and the tapered slot extending from the ground plane edge, allowing one antenna structure to provide dual band operation at 2.4 GHz and 5 GHz frequency ranges
Solution Approach 2:
The antenna structure is designed to perform multiple functions simultaneously - it operates as both a loop ground edge radiating antenna for 2.4 GHz band and a tapered slot antenna for 5 GHz band, providing universal support for multiple WiFi protocols and frequency ranges through a single radiator trace configuration
2Adaptability or versatility
If separate antennas are used for different frequency bands, then each frequency range can be optimized, but the device footprint increases
Solution Approach 1:
The patent combines multiple antenna functions into a single integrated structure where the radiator trace serves dual purposes - forming the loop antenna for 2.4 GHz operation and creating the tapered slot for 5 GHz operation, thereby reducing the overall antenna footprint while maintaining multi-frequency capability
Solution Approach 2:
The single antenna structure provides universal support for multiple frequency bands (2.4 GHz and 5 GHz) and network protocols (WiFi, BLE, IEEE 802.15.4) through its dual-function design, eliminating the need for separate antennas and reducing the device footprint
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 dual band antenna provides efficient operation across two distinct frequency bands, supporting WiFi, BLE, and IEEE 802.15.4 protocols, with a small footprint and high efficiency, suitable for network devices requiring multi-frequency capabilities.
Implementation Method 1
the strong current loop allows the spread of loop-type current distributions on the ground plane 15 to radiate outward
Implementation Method 2
The tapered slot antenna is a broadband end-fire traveling wave type antenna
Data Source
AI summary
A dual band antenna structure is disclosed. The dual band antenna structure utilizes features from loop ground edge radiating antennas and tapered slot antennas to create an antenna that has at least two resonance frequencies. The dual band antenna structure includes a loop ground edge radiating antenna, which has a first resonance frequency. The trace used to create the loop ground edge radiating antenna is shaped to also serve as part of a tapered slot antenna to provide a second resonance frequency. The dual band antenna structure is useful for network devices that operate at multiple frequencies, such as those using the