PCB Antenna for 2.4GHz

 

PCB Antenna for 2.4GHz

 

So, in case you do the equal calculation for two.45GHZ, we are able to get an antenna period of 23mm.

Now the primary out of them, we will turn our attention to the primary attraction of the blog that is the PCB antenna layout. techwadia

Before continuing, permit me to tell you that I am now not going to go bit by bit and give an explanation for all the very information about each factor of a PCB antenna due to the fact I do no longer have the extent of know-how, equipment, and measurement wanted for this kind of distinct explanation.

Instead, I am going to talk about a number of the middle concepts, excellent practices, and things to preserve in thoughts. With that being stated, let's lay it out!

Choosing the proper sort of antenna

We have decided in advance that we are going to use the quarter wavelength antenna for this project, so depending on the necessities, there are only two major types of antenna that dominate all others, which might be:

The inverted F antenna

The Meander line inverted F antenna

And we're going to use the meander line inverted F antenna. At this point, this assignment is getting very long, so that you could shorten it up a bit; I am not going to explain why I am going for a meander line inverted F antenna, if you want to understand amazon affiliate more about those sorts of antennas, you could check out this newsletter on A Design on PCB with a Meandering Line and Shorting Strip.

Antenna Calculations

Before we begin the calculation, we want to set some parameters directly.

First, we ought to pick out the substrate and operating frequency; subsequent, we must calculate the appropriate length and Width of the substrate, and subsequently, we can calculate the period and Width of the trace.

To explain the design of the antenna, we're assuming that PCB is produced from FR4 fabric, which has a relative permeability of four.4; this parameter may be essential, as we can see later in the calculation.

The peak of the substrate can be calculated via the use of,

wherein,

hs = Height of the substrate,

F= Frequency in GHz,

C= Velocity of mild in m/s,

Σr= Substrate dielectric constant.

The Width of the hint can be decided using

The period of the trace may be determined by the usage of

Where,

Σff = Effective permittivity

ΔL = Physical length

Length of the Substrate is given By,

The Width of the substrate is located by way of,

The microstrip width to depth ratio is decided by means of,

Anywhere,

d = Width of trace,                 

w = Width the substrate                   

A = Effective region.

Enough! With the Calculations, let's layout An ESP8285 based 2.45GHz RF board reveal how smooth it is and how complicated it is able to be to design a board and an RF module on board.

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