Monolithic Parabolic Dish Antenna Side Lobe Shield

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Solution Overview

Problem

MIMO systems face challenges in reducing side lobe radiation interference in noisy environments with multiple transmitters and receivers, leading to signal degradation and inefficiencies in signal transmission and reception.

Innovation Solution

A monolithic parabolic dish antenna with a side lobe shield and integrated electronics, manufactured as a single piece, which reduces side lobe radiation by using a metalized surface and microwave absorbing materials to direct signals uniformly and minimize interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple antennas are used in MIMO systems, then communication throughput and reliability are improved, but side lobe radiation interference increases

Engineering Contradiction:

Improvecommunication throughputVSAvoidside lobe radiation interference

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent applies microwave absorbing materials to the interior surfaces of the enclosure and side lobe shields to convert harmful side lobe radiation into thermal energy, effectively eliminating interference while maintaining the benefits of multiple antennas in MIMO systems

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent introduces side lobe shields and microwave absorbing materials as intermediary elements between the antennas and the environment, which absorb and block harmful radiation before it can cause interference, allowing multiple antennas to operate without mutual interference

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If side lobe shields are added to reduce interference, then signal quality is improved, but device complexity increases

Engineering Contradiction:

Improvesignal qualityVSAvoidantenna structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the side lobe shields, microwave absorbing materials, and antenna elements into an integrated monolithic structure, reducing the number of separate components and simplifying assembly while maintaining effective side lobe suppression

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The enclosure structure serves multiple functions simultaneously: it provides mechanical support for the antennas, acts as a shield against side lobe radiation, and incorporates microwave absorbing materials for interference reduction, eliminating the need for separate dedicated components

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 reduces side lobe radiation interference, enhances signal pickup, and improves communication performance in noisy environments by integrating electronics within the antenna and using a metalized surface and microwave absorbing materials to direct signals uniformly.

Implementation Method 1

using a metalized surface and microwave absorbing materials to direct signals uniformly

Methodology Applied

Scientific EffectReflection: Reflection

Implementation Method 2

using a metalized surface and microwave absorbing materials to direct signals uniformly and minimize interference

Methodology Applied

Scientific EffectAbsorption (EM radiation): Absorption (EM radiation)

Data Source

PatentUS10186786B2Enclosure for radio, parabolic dish antenna, and side lobe shields

Publication Date: 2019.01.22 MIMOSA NETWORKS

AI summary

Enclosures for radios, parabolic dish antennas, and side lobe shields are provided herein. A dish antenna includes a parabolic circular reflector bounded by a side lobe shield that extends along a longitudinal axis of the dish antenna in a forward direction forming a front cavity, and a sidewall that extends along the longitudinal axis of the dish antenna in a rearward direction forming a rear cavity.