Modular RF Power Amplifier Layout for Fast TV Transmitter Repair

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Solution Overview

Problem

Existing power amplification apparatuses for television signal transmission systems are integrated, making it impossible to exchange only the component for power amplification or signal combination separately, leading to inefficiencies and increased maintenance costs when components break down.

Innovation Solution

A power amplification apparatus with detachable amplification and combining units, where output connectors of the amplification unit are arranged horizontally and input connectors of the combining unit are correspondingly arranged, allowing for easy separation and exchange of components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If power amplification apparatuses are integrated as a single unit, then structural simplicity is achieved, but the ability to exchange individual components (amplification or combining units) separately is lost

Engineering Contradiction:
Improvestructural simplicityVSAvoidcomponent exchangeability
Core Design Contradiction:
Ease of manufactureVSEase of repair

Solution Approach 1:

The power amplification apparatus is divided into separate functional modules: amplification units (each containing amplification circuits) and combining units (each containing combiners). These modules are connected through standardized connectors, allowing them to be manufactured independently and exchanged separately. This segmentation resolves the contradiction by maintaining structural simplicity through modular design while enabling independent component exchange for repairs.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If amplification circuits and combiners are integrated in the same chassis, then device complexity is reduced, but maintenance costs increase due to inability to replace only faulty components

Engineering Contradiction:
Improveintegration levelVSAvoidmaintenance cost
Core Design Contradiction:
Device complexityVSEase of repair

Solution Approach 1:

The apparatus is segmented into replaceable modules where amplification units and combining units are separated. Each module can be independently diagnosed and replaced, reducing maintenance costs by replacing only faulty components rather than entire integrated systems.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Standardized connectors and interfaces are designed to be universal across different modules. The same connector types are used throughout the system, allowing any amplification unit to work with any combining unit, which simplifies inventory management and reduces maintenance costs through component interchangeability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Area of stationary object

If output connectors are arranged vertically, then space efficiency is improved, but ease of connection and disconnection between modules is reduced

Engineering Contradiction:
Improvespace efficiencyVSAvoidconnector accessibility
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The connector arrangement is changed from vertical (one-dimensional stacking) to horizontal (lateral arrangement). This dimensional change improves accessibility and ease of connection/disconnection while maintaining space efficiency through optimized module layout. The horizontal arrangement allows operators to access connectors from the side rather than requiring vertical space manipulation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS10498293B2Power amplification apparatus and television signal transmission system
Publication Date: 2019.12.03 NEC CORP
  • US10498293B2 patent drawing
  • US10498293B2 patent drawing
  • US10498293B2 patent drawing

AI summary

An amplification unit contains two or more sets containing a plurality of amplification circuits, and amplifies power of an RF (Radio Frequency) signal. A combining unit contains two or more combiners corresponding to the two or more sets, combines RF signals output by the amplification circuits, and outputs a resultant RF signal. The amplification unit has one chassis storing each amplification circuit. The amplification unit and the combining unit have two or more connectors which are arranged transversely. The amplification unit and the combining unit are attachable/detachable.