Planar Antenna Segmented Body Broadband Reception
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Solution Overview
Problem
Conventional micro-strip antennas have a narrow frequency range, making them unsuitable for receiving digital television signals across a broad range of frequencies, and their design needs to be country-specific, increasing costs and delays in marketability.
Innovation Solution
A planar antenna with a body formed on a printed circuit board, featuring a sequence of trapezoid, hexagon, and diamond segments, and a rectangular interface with an amplifier circuit, capable of receiving digital television signals from 470 MHz to 860 MHz, allowing for a wide frequency range and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional micro-strip antennas are used, then the antenna size is reduced by being planar, but the frequency range becomes very narrow
Solution Approach 1:
The antenna body is divided into multiple geometric segments (trapezoid, hexagon, diamond) arranged in sequence along the longitudinal axis. Each segment contributes to different frequency responses, and their combined effect expands the overall frequency range while maintaining a planar structure. This segmentation allows the antenna to handle multiple frequency bands without increasing physical size significantly.
Solution Approach 2:
The antenna employs asymmetric geometric shapes (trapezoid, hexagon, diamond) with specific dimensions and orientations rather than symmetric patterns. This asymmetry creates multiple resonant frequencies and impedance characteristics, enabling broad bandwidth operation. The asymmetric design disrupts single-frequency resonance and distributes the electromagnetic response across a wider frequency spectrum.
2Reliability
If conventional micro-strip antennas are designed for specific countries, then the antenna performance is optimized for local frequency standards, but the manufacturing cost and time increase
Solution Approach 1:
The antenna body with its multi-segment geometry is designed to universally receive digital television signals across multiple frequency ranges (470-860 MHz and potentially other bands). This universal design eliminates the need for country-specific antenna variants, allowing a single product to serve multiple markets with different frequency standards, thereby reducing design time and accelerating time-to-market.
Solution Approach 2:
The antenna incorporates adjustable or adaptable characteristics through its geometric segmentation and feeding port configuration, allowing it to dynamically respond to different frequency requirements. The design can be easily modified or tuned for specific regional standards without requiring complete redesign, enabling rapid adaptation to different markets.
3Reliability
If conventional micro-strip antennas are designed for specific countries, then the antenna performance is optimized for local frequency standards, but the manufacturing cost increases
Solution Approach 1:
The antenna employs a universal multi-segment geometric design that can receive digital television signals across multiple frequency ranges used by different countries. This eliminates the need to manufacture separate antenna models for different markets, consolidating production into a single design and thereby reducing manufacturing costs through economies of scale and simplified supply chain management.
Solution Approach 2:
The antenna design allows for parameter adjustments (such as feeding port configuration and segment dimensions) to optimize performance for different frequency standards without changing the fundamental structure. This enables cost-effective adaptation to local requirements through minor parameter modifications rather than complete redesign, reducing development and tooling costs.
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 antenna effectively receives digital television signals across a wide frequency range, reducing design and market delays, and enhancing adaptability to different frequency standards without significant cost increases.
Implementation Method 1
The body (12) is conductive pattern formed on the printed circuit board using co-planar designing techniques or micro-strip designing techniques. The body (12) can receive an electromagnetic wave signal for television programs in the range between around 470 MHz to around 860 MHz.
Data Source
AI summary
A planer antenna for receiving digital television programs is conductive and formed on a printed circuit board and has a body and an interface. The body is formed on the printed circuit board to receive an electromagnetic wave signal of television programs in a frequency range from around 470 MHz to around 860 MHz and has a longitudinal line of symmetry along which a series of shapes is formed starting with a trapezoid segment, then an hexagon segment and then a diamond segment and has a feeding port. The interface is rectangular, conductive and formed on the circuit board corresponding to the feeding port and connected electrically to the body at the feeding port. The interface has an output port formed on the interface for connecting to and transmitting signals to a television.