RF Module Triplexer Layout for Compact 4G/5G Antenna Sharing

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Solution Overview

Problem

The difficulty in arranging multiple antennas in electronic devices, such as mobile phones and tablets, due to limited space, complicates the operation of 5G communication technology, which requires more antennas and leads to space constraints and complexity in antenna arrangement.

Innovation Solution

A RF module is designed with a RF transceiver module and two antennas, each connected to a triplexer, which isolates and manages different frequency bands, reducing the need for additional antennas and optimizing space usage by decoupling frequency-band antennas for 4G and 5G connectivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If more antennas are arranged in electronic devices to support 5G communication technology, then communication capability is improved, but device complexity and space requirements increase

Engineering Contradiction:
Improvecommunication capabilityVSAvoidantenna arrangement complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a multi-functional antenna system where a single antenna structure can operate across multiple frequency bands (4G and 5G) by using frequency-selective surfaces and adjustable resonance mechanisms. This allows the antenna to serve multiple communication functions simultaneously, reducing the total number of antennas needed while maintaining comprehensive communication capability.

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

Solution Approach 2:

The patent combines 4G and 5G antenna functions into a unified antenna structure with integrated feeding networks and shared ground planes. By merging previously separate antenna systems into a single coordinated structure, the patent reduces spatial requirements and simplifies the overall antenna arrangement in the electronic device.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If more antennas are arranged in electronic devices to support 5G communication technology, then communication capability is improved, but available space is reduced

Engineering Contradiction:
Improvecommunication capabilityVSAvoidavailable space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent transitions from planar antenna arrangements to three-dimensional antenna structures utilizing vertical spacing and layered configurations. By incorporating height and depth dimensions, the antenna system achieves multiple frequency band operations and diverse radiation patterns without proportionally increasing the footprint area on the device surface.

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

Solution Approach 2:

The patent implements nested antenna structures where smaller antenna elements are positioned within or alongside larger antenna structures. This nested configuration allows multiple antenna functions to coexist in a compact arrangement, with inner antenna elements operating at higher frequencies while outer elements handle lower frequencies, maximizing space utilization.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS11990968B2Radio frequency module and electronic device
Publication Date: 2024.05.21 NOKIA TECHNOLOGIES OY
  • US11990968B2 patent drawing
  • US11990968B2 patent drawing
  • US11990968B2 patent drawing

AI summary

A RF module and an electronic device. The RF module includes a RF transceiver module; a first antenna configured to transmit a first transmission signal, and receive a first main reception signal and a second diversity reception signal; a first triplexer connected to the RF transceiver module and the first antenna, and being configured to isolate the first transmission signal, the first main reception signal, and the second diversity reception signal; a second antenna configured to transmit a second transmission signal, receive a second main reception signal and a first diversity reception signal, and a frequency band of the first transmission signal being different from that of the second transmission signal; and a second triplexer connected to the RF transceiver module and the second antenna, and being configured to isolate the second transmission signal, the second main reception signal, and the first diversity reception signal.