Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Featured blog entries

  • Featured
The switching is required in many applications at low as well as at high frequency. RF MEMS switches are the specific micromechanical switches that are designed to operate at RF to mmWave frequencies. MEMS switches usages some mechanical movement to achieve a closed or open circuit in the Radio...
  • Featured
Spring-loaded pins are rapidly finding new applications in modular product design. Also referred to as SLCs (spring-loaded connectors), this product resolves many of the manufacturing issues like misalignment, coplanarity, and tolerance stack up that can plague traditional pins and sockets...
  • Featured
weetabixharry
Views
2K
Comments
3
Updated
Uncategorized
I was recently asked how to estimate the frequency of a noisy sine wave over a short capture. In this context, 'short' means the total capture duration relative to the period of the sine wave. So we may have, at most, a few periods of the sine wave (or, at worst, less than one period). Here is...
  • Featured
According to my previous experience, wideband matching from 700 MHz to 2700 MHz (GSM/WCDMA/LTE) can be achieved by mere 3 components. If the frequency range is 2.4, 2.1, 1.8, 1.6, 0.9 GHz, and you have 5 components, just do the wideband matching from 0.9 GHz to 2.4 GHz To start...
  • Featured
I/Q Imbalance As mentioned above, for SSB modulation, there should be only one desired sideband in the spectrum in theory. Nevertheless, in reality, there will be at least three tones in the spectrum. As shown below, one of the three tones is undesired sideband, so-called image ...
  • Featured
For I/Q signal I/Q imbalance carrier leakage you can refer to the PDF file Introduction to I/Q signal As mentioned above, for SSB modulation, in reality, there will be at least three tones in the spectrum. One is signal(i.e. desired sideband), another is undesired...
  • Featured
Time Domain Reflectometry is the analysis of conductor lines (interconnects)by sending a pulsed signal into the conductor and then examining the reflection of that pulse. A TDR transmits a short rise time pulse along the conductor. If the conductor is of a uniform impedance and is properly...
  • Featured
EastbayA
Views
2K
Comments
1
Updated
Uncategorized
By Lee Teschler, Exeutive Editor EEWorldonline.com Ground-fault circuit interrupters (GFCIs) are sometimes also called earth leakage or residual-current circuit breakers. They can sense leakage current to earth ground and interrupt the circuit automatically when leakage current exceeds a...
  • Featured
by Bill Schweber on Analog IC Tips We have already looked briefly at Earth ground (if any), chassis ground, and commons (often misnamed as "grounds"). These do not exist as unrelated connections in a system. The issues related to connecting commons and ground is the subject of countless...
  • Featured
The helix antenna is a travelling wave antenna, which means the current travels along the antenna and the phase varies continuously. Helix antennas (also commonly called helical antennas) invented by John Kraus give a circular polarized wave. Helix antennas are referred to as axial-mode helical...
  • Featured
Lot of people who start with HFSS have issues in making the complicated geometry in HFSS. Here are very simple steps which anyone can follow to make a 3D structure in HFSS Just take example of this cavity with attached beam pipes Step 1 Draw this 3D structure on paper as 2D line Diagram...
  • Featured
weetabixharry
Views
137
Reaction score
1
Uncategorized
We often plot some data on a graph and wonder if there might be a simple mathematical function to describe what we see: In many cases, a polynomial approximation would be particularly useful. That is, we want to describe the line in the form...
  • Featured
Single Sideband Modulation Conventional double sideband(DSB) modulation can be considered wasteful of power and bandwidth because they contain a carrier signal and two identical sidebands. Conversely, single sideband(SSB) modulation, as the name implies, uses only one sideband to provide...
  • Featured
xpress_embedo
Views
2K
Comments
1
Updated
Uncategorized
In this blog post i will share my Graphical Lcd libraries with you which are written for xc8 compiler in MPLAB-X development environment. The libraries functions are inspired from mikroC functions and i tried to keep most of the functions similar to the one available in mikroC compiler. Some...
  • Featured
xpress_embedo
Views
3K
Comments
1
Updated
Uncategorized
In this blog post i will share the OLED libraries with you, which are written for mikroC compiler and can be used with any other C compiler. Following are the functions which are currently present. void OLED_Init( void ); uint8_t OLED_Width( void ); uint8_t OLED_Height( void ); void...
  • Featured
Find bellow an Android TCP client extension that implements a very simple socket; note that its operation is performed 'one-shot', which means that only one command is sent ( and its respective response, read ) at a time, and then the socket connection is closed. So, be aware that it is not a...
  • Featured
The following attached file contains an SSH Client extension which I made for my own use, but it may also be useful for users of the MIT Application Inventor 2 (AI2) community, or even to the AppyBuilder community (code intrinsically compatible for the last one, but not tested). This is just the...

×
Top