Multi-Band Antenna Grounded Base Layout for Compact LTE Bandwidth
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current antenna systems are limited in their ability to cover a wide range of LTE frequency bands, often requiring either large antenna arrays or single geometrically complex antennas, which are impractical for small devices and have limited usable bandwidth.
Innovation Solution
A multi-band antenna design featuring a conductive sheet with a body portion, head portion, and arm members that resonate across a wide frequency range from 600 MHz to 6.0 GHz, allowing for compact and efficient coverage of multiple LTE bands by strategically configuring the low and high band radiation portions and grounding elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an antenna array of various antenna configurations is used to capture a greater portion of the LTE spectrum, then the frequency bandwidth coverage is improved, but the space occupied increases making it impractical for small devices
Solution Approach 1:
The patent combines multiple antenna configurations into a single integrated antenna structure. The antenna includes a vertical radiating element with multiple horizontal radiating elements arranged at different heights and angles, allowing a single antenna to provide frequency bandwidth coverage across multiple LTE bands (700 MHz to 3.5 GHz) that would traditionally require separate antennas or an antenna array.
Solution Approach 2:
The patent transitions from a two-dimensional planar antenna layout to a three-dimensional spatial configuration. The radiating elements are arranged in vertical and angular dimensions, with horizontal elements positioned at different heights along the vertical radiating element, creating a multi-dimensional structure that achieves broad frequency coverage within a compact footprint suitable for small devices.
2Area of stationary object
If a single antenna is used to reduce space occupation, then the device compactness is improved, but the usable bandwidth is limited by its geometrical configuration
Solution Approach 1:
The patent divides the single antenna into multiple segmented radiating elements with different geometrical configurations. The antenna includes a vertical radiating element segmented into multiple sections, each with horizontal radiating elements of varying lengths and orientations. This segmentation allows each segment to resonate at different frequency ranges, collectively providing broad bandwidth coverage from 700 MHz to 3.5 GHz within a compact single-antenna structure.
Solution Approach 2:
Different portions of the antenna are designed with specific local geometrical properties optimized for different frequency bands. The horizontal radiating elements have varying lengths and positions, with each local configuration tailored to enhance resonance at particular frequency ranges, enabling the single antenna to achieve multi-band functionality without requiring large overall dimensions.
3Reliability
If an antenna is designed for a specific frequency band (e.g., 700 MHz-2.7 GHz), then the resonance performance is optimized, but the coverage of other LTE bands is limited
Solution Approach 1:
The patent designs the antenna with multi-functional capability to operate across multiple LTE frequency bands simultaneously. The combination of vertical and horizontal radiating elements with specific dimensional relationships creates resonance conditions that support reliable operation from 700 MHz to 3.5 GHz, allowing a single antenna structure to serve multiple frequency band functions that would traditionally require separate dedicated antennas.
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 multi-band antenna provides wider frequency coverage, making it suitable for compact LTE transmitters and overcoming the limitations of traditional antenna systems by allowing for efficient operation across a broader spectrum while maintaining a compact form factor.
Implementation Method 1
radio antennas that are used for transmitting and receiving information via electromagnetic waves... antennas that are configured to electromagnetically resonate at frequencies within the dedicated bandwidth
Data Source
AI summary
A multi-band antenna has a feed point, a grounding location, a first portion for low band operation, a second portion for low band operation, and one or more portions for high band operation. The ground reference of the feed point for the multi-band antenna is connected to a separate object that may provide a base for the multi-band antenna. The feed point of the multi-band antenna may be spaced above the base and have a space between the feed point and a location for the ground point. The low band portion has multiple resonances that are often odd multiples of the lowest resonant response. The portions that resonant most dominantly in the high band often have multiple resonances that are even multiples of the lowest high band resonance. The multi-band antenna has resonances spaced closely enough to appear to be a wide band antenna above the fundamental high band resonance.