Miniaturized Printed UWB Bluetooth Antenna Design
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Solution Overview
Problem
Current mobile devices require multiple antennas to cover different frequency bands, leading to increased size and complexity, making it difficult to integrate ultra-wideband and Bluetooth technologies effectively.
Innovation Solution
A miniaturized printed ultra-wideband and Bluetooth antenna is designed with a compact structure, combining two antenna elements on a dielectric substrate, featuring a printed monopole antenna plate with rounded corners, a metal ground, and a metal microstrip feed, allowing coverage of both frequency bands with reduced spatial requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas are installed to cover different frequency bands, then frequency band coverage is improved, but device size and system complexity increase
Solution Approach 1:
The patent combines ultra-wideband and Bluetooth antenna functions into a single integrated antenna structure. The antenna plate includes both an ultra-wideband antenna element and a Bluetooth antenna element that share common components (ground, feed), achieving dual frequency band coverage while reducing the number of separate antennas and simplifying the overall system.
Solution Approach 2:
The single antenna structure is designed to perform multiple functions by supporting both ultra-wideband communication and Bluetooth communication across different frequency bands. This multi-functional design allows one antenna to replace what would traditionally require separate dedicated antennas for each standard.
2Adaptability or versatility
If multiple antennas are installed to cover different frequency bands, then frequency band coverage is improved, but occupied space increases
Solution Approach 1:
The Bluetooth antenna element is positioned within the spatial area of the ultra-wideband antenna structure. The bent portions of the Bluetooth antenna are arranged inside the rectangular notch of the ultra-wideband antenna plate, allowing nested configuration that maximizes space utilization and minimizes the overall occupied area.
Solution Approach 2:
The antenna design utilizes three-dimensional spatial arrangement by bending the Bluetooth antenna portions and positioning them within the notch of the ultra-wideband antenna structure. This vertical and lateral dimensionality optimization allows both antenna types to coexist in a compact footprint.
3Adaptability or versatility
If multiple antennas are installed to cover different frequency bands, then frequency band coverage is improved, but integration with circuitry becomes more difficult
Solution Approach 1:
Both the ultra-wideband and Bluetooth antenna elements share common structural components including the ground plane and feed structure. This merged design reduces the number of separate connection points and simplifies the integration process with the circuit board and other electronic components.
Data Source
AI summary
The present invention provides a printed miniaturized ultra-wideband (UWB) and Bluetooth antenna, comprising a dielectric substrate, a printed monopole antenna plate, a metal ground and a metal microstrip feed, wherein the printed monopole antenna plate is arranged on the front side of the dielectric substrate; the printed monopole antenna plate comprises first and second antenna elements configured to operate in the ultra wideband communication band and operate in the Bluetooth communication band respectively, and the first antenna and second antenna elements share the common metal ground and the metal microstrip feed; the first antenna element has a rectangular shape with rounded and smoothed corners; the right side of the first antenna element comprises a first antenna body, and a rectangular notch is etched from the left side of the first antenna element; the left side of the second antenna element comprises a second antenna body, and the right side of the second antenna element has a plurality of bent portions; and the plurality of bent portions are arranged inside of the rectangular notch of the first antenna element. The antenna provided by the present invention is miniaturized, so that an antenna with a compact structure is achieved which can cover two wireless standard frequency bands.