Preciso Estudar Isso.

Meu verdadeiro sonho de consumo.

Ter filhos é muito enrolado.

Antenas, vale a pena estudar elas.

Best Partner for Wireless Modules: A Comprehensive Antenna Selection Guide

n the field of wireless communication, antenna selection is crucial. It not only affects the coverage range and transmission quality of signals but also directly relates to the overall performance of the system. Among various wireless modules, finding the right antenna can maximize their potential, ensuring stable and efficient data transmission.

When designing wireless transceiver devices for RF systems, antenna design and selection are essential components. A high-quality antenna system can ensure optimal communication distances. Typically, the size of antennas of the same type is proportional to the wavelength of the RF signal; as signal strength increases, the number of required antennas also grows.

Antennae can be categorized as internal or external based on their installation location. Internal antennas are installed within the device, while external antennas are mounted outside.

In situations where space is limited or there are multiple frequency bands, antenna design becomes more complex. External antennas are usually standard products, allowing users to simply select the required frequency band without needing additional tuning, making them convenient and easy to use.

What are the main types of antennas?

External Antennas: These antennas can be classified into omnidirectional antennas and directional antennas based on the radiation pattern.

Internal Antennas: These antennas refer  to antennas that can be placed inside devices.

Omnidirectional Antennas: These antennas radiate signals uniformly in the horizontal plane, making them suitable for applications that require 360-degree coverage, such as home Wi-Fi routers and mobile devices.

Directional Antennas: These antennas have a high emission and reception strength in one or more specific directions, while the strength is minimal or zero in others. Directional antennas are primarily used to enhance signal strength and improve interference resistance.

PCB Antennas: These antennas are directly printed on the circuit board and are suitable for devices with limited space, commonly used in small wireless modules and IoT devices.

FPC Antennas: FPC antennas are flexible printed circuit antennas that are lightweight, efficient, and easy to integrate.

Concealed Antennas: Designed for aesthetic purposes, concealed antennas can be hidden within devices or disguised as other objects, making them suitable for applications where appearance is important without compromising signal quality.

Antenna Selection Guide

When selecting the appropriate antenna for a communication module, it's essential to first determine whether to use an internal or external antenna based on the module's structure.

External Antennas: These antennas offer high gain, are less affected by the environment, and can save development time, but they may take up space and impact the product's aesthetics.

Internal Antennas: These have relatively high gain and are installed within the device, maintaining a clean and appealing exterior.

 Sucker  Antennas: These provide high gain and are easy to install and secure.

Copper Rod  Sucker  Antennas: Made from large-diameter pure copper radiators, these are highly efficient with a wide bandwidth.

Rubber Rod Antennas: Offer moderate gain at a low cost.

Fiberglass Antennas: Suitable for harsh environments and ideal for long-distance signal

External Directional Antennas

Typically used in environments with long communication distances, small signal coverage areas, and high target density.

Panel Antennas have high efficiency, are compact, and easy to install, while considering the impact of gain and radiation area Yagi Antennas offer very high gain, are slightly larger, and have strong directionality, making them suitable for long-distance signal transmission; however, attention must be paid to the antenna's orientation during use

Internal Antenna Selection

Most internal antennas are affected by environmental factors and may require custom design or impedance matching

Spring Antennas are cost-effective but have low gain and narrow bandwidth, often requiring tuning for good matching when installed Ceramic Patch Antennas occupy minimal space and perform well, but have a narrow bandwidth

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Old good times

SEGA Japan chronicled a list of their home game consoles online in the early 90s but abandoned it before the Dreamcast launched. You can still access the site through https://sega.jp/fb/segahard/

Muito bom. Gostei.

2019-2020 school year is fast approaching kids

A list of reminders that are mainly for myself

Sleep

Sleep is really important

Don't stay up till 11-12 every night you will cry the next day

GET BACK ON SCHEDULE NOW SO YOU DON'T DIE THE FIRST WEEK OF SCHOOL

Practice good sleep hygiene by getting into good habits before bed (I personally brush my teeth, change into my pjs, lay out clothes for the next day, then go make myself a mug of sleepy time tea to drink while I read)

Try to find a place to chill on your phone/read/do other not school/work related things that isn't your bed

SLEEP FOR THE LOVE OF GOD PULLING AN ALL NIGHTER WILL NOT HELP YOU IT IS TOO LATE MY FRIENDS

Organization

Color code

Color code some more

Color code everything

Color coding is helpful if you enjoy visual learning and it makes things pretty

You know highlighting in pretty colors makes you happy don't lie

You're told to buy all your supplies beforehand but if you're a high school student honestly don't

Buy everything you know you'll need (paper, pencils, highlighters, pens, etc.)

Then after the first day when your teachers give you the supply lists you can fill in whatever you don't have

USE THE DOLLAR STORE THEY HAVE RELATIVELY DECENT STATIONARY FOR DIRT CHEAP

That's where I buy all my comp books and I got a really cute cat one there once

This will save you a ton of money

Try to keep your desk relatively clean but it's ok if it gets a little messy don't stress

Try to keep all your school stuff in one place

If you have classes that don't have required notebook set ups then take notes for all those classes in one notebook and transfer the notes into subject notebooks at home save your backs

COLOR CODE

For my fellow IBD, Crohn's, UC, IBS, lactose intolerant, or friends with severe food allergies

Don't eat your trigger foods during the school year

It's tempting but then you will cry

And since most GI conditions are aggravated by stress missing more school/work because of a flare will cause stress and make it worse

Don't make the mistakes I made last school year I beg

Rest when you need to

School is hard with chronic illness, make sure you take care of yourselves

Mentally ill friends

AGENDAS

I know they can be hard to use but planning things and breaking stuff down into small pieces really does help

I use an app called Egenda which let's me organize things by class and gives me notifications to get my shit done

REST

Get proper sleep because mental illness is draining

Don't stay up till 11 just cause you wanna talk to friends it will catch up to you

Your friends want you to take care of yourself so sleep

Eat properly

Even if it's something small for breakfast it's better than nothing

Make sure you're in classes you can handle

You might have the intelligence for AP but you may not have the stamina, that's ok

School is about learning not competition don't push yourself too hard

Food

Eat friends

Try to eat at least one fruit and veggie every day

You will feel better

Avoid diets during the school year unless necessary, stressing about food just adds more stress to your life

HYDRATE HYDRATE HYDRATE HYDRATE HYDRATE HYDRATE

Dehydration is as killer when you live in a hot area

Please don't die

You are loved

Apps (my personal favorites)

Egenda - digital agenda

Desmos - graphing calculator

Quizlet - this app isn't just for cheating, you can create flashcards, quizzes, and more and it saved my ass on some of my finals last year

Khan is well loved for a reason, it's a great supplement program

Other

School counselor's really aren't great to talk to about mental health issues, they're there for scheduling and handling school problems like bullying and such

If you can, find a therapist, seriously

Find good friends who support you

STAY OUT OF DRAMA

Eat at lunchtime, you need that boost to power through the rest of the day

Stay hydrated too, carry a water bottle

READ

ENRICH YOURSELF

LIBRARIES EXIST FOR A REASON GO FIND A GOOD BOOK

For incoming freshman

Don't try to look cool

Stay out of drama it's not worth it

Don't feel pressured to date just because everyone else is

That senior is not actually interested in you, you're just easy to control

Upperclassmen can be rude but if you find some cool ones make friends with them cause they can warn you about teachers and classes and help you navigate your new school

Try to have good relationships with your teachers, people may call you a teacher's pet but there are perks to a teacher liking you

My bio teacher once called me up beginning of class just to show me a cat meme cause I have an "I like cats" pin

You can't get by doing nothing like in middle school and teachers are a lot stricter, now is the time to learn the value of hard work

Fights aren't worth it, if someone is challenging you just let it go

AND REMEMBER:

Grades do not define you.

You are loved.

You will succeed.

Muito fofo

Surpresa

my trick for getting through grad school is learning to navigate the quadrants with all their nuances

Wuxia World