Antenna Array for Smart TV Signal Coverage
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Solution Overview
Problem
Current wireless transmission technologies, such as Bluetooth and MIMO, suffer from signal dead zones and poor coverage in smart TVs due to electromagnetic signal reflection by metals, leading to inadequate communication and connection issues, especially with increasing TV sizes and complex internal components.
Innovation Solution
A signal transmission device comprising a main antenna, a transmission antenna, and a dead-zone compensating antenna connected via a signal transmission line, where the main antenna receives signals from a wireless module, and the transmission antenna relays a portion of these signals to the dead-zone compensating antenna to cover signal dead zones, allowing for adjustable placement to ensure full coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single main antenna is used for wireless signal transmission in smart TV, then the device complexity is low, but signal dead zones appear and coverage is insufficient
Solution Approach 1:
The patent divides the single antenna function into three separate antennas: main antenna, transmission antenna, and dead-zone compensating antenna. Each antenna serves a specific spatial zone, segmenting the coverage area to eliminate dead zones while maintaining overall system reliability.
Solution Approach 2:
The transmission antenna acts as an intermediary between the main antenna and the dead-zone compensating antenna, receiving signals from the main antenna and relaying them to the compensating antenna through a signal transmission line, thereby extending coverage to dead zones.
2Adaptability or versatility
If the TV has complex metals inside and increasing size, then the TV functionality and display quality are improved, but electromagnetic signal reflection increases causing dead zones
Solution Approach 1:
The patent applies different antenna types with different polarization characteristics to different locations and directions. The main antenna uses linear polarization while the transmission antenna uses circular polarization, creating local quality variations that adapt to different signal propagation paths and reduce reflection effects from internal metals.
Solution Approach 2:
The patent converts the harmful effect of metal reflections into a beneficial multi-path signal propagation by using circularly polarized transmission antenna that can better penetrate and reflect off metal surfaces, transforming the obstacle into an additional signal path that reaches dead zones.
3Ease of operation
If Bluetooth and WIFI modules are used for communication, then human-computer interaction and network connectivity are enabled, but communication reliability fails in dead zones
Solution Approach 1:
The patent adds a spatial dimension to the communication system by deploying multiple antennas at different positions and orientations. This three-dimensional antenna arrangement creates multiple spatial channels for signal transmission, ensuring that at least one path remains reliable even when others are blocked by dead zones or metal reflections.
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 solution effectively eliminates signal dead zones and enhances communication and connection reliability by enabling air-fed signal transmission and adjustable positioning of the dead-zone compensating antenna, providing comprehensive coverage around the smart TV.
Implementation Method 1
the main antenna receives signals input by the wireless signal module and transmits the signals
Implementation Method 2
the transmission antenna receives a part of the signals from the main antenna and transmits the part of the signals to a dead-zone compensating antenna through the signal transmission line
Data Source
AI summary
Disclosed are a signal transmission device and a smart TV including a wireless signal module. The signal transmission device includes: a main antenna having a first signal input port, the first signal input port being connected with the wireless signal module; a transmission antenna adjacent to and spaced from the main antenna, the transmission antenna having a signal output port; and a dead-zone compensating antenna having a second signal input port. The second signal input port is connected with the signal output port through a signal transmission line, and the main antenna receives signals input by the wireless signal module and transmits the signals, the transmission antenna receives a part of the signals and transmits the part of the signals to a dead-zone compensating antenna through the signal transmission line; the dead-zone compensating antenna transmits the received signals and compensates a signal dead zone of the main antenna.