Importance of impedance matching and coupling mechanism(1)

And older story in microwave and THz  or higher frequency range is finding a way that we have high effieceincy coupling. So i will discuss about mechanism coupling and phase and impedance matching.

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3D Contour Farfields in Microwave and Light Devices

In this here we want to discuss about farfields in microwave and light devices.farfield is a polar of fileds or power that is used in antenna design.

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Selectivity and sensitivity in SDR Hardwares

Finally we worked on RTL-SDR and HackRF One and USRP in practical test and different moudlation like GFSK,DVB-T,ATSC,OFDM,DMR.With all of them we can see spectrum, it is not final purpose, we emphasize ,purpose is data in digital radio communication.So which SDR hardware can handle  data extracting with different moudation and protocols like GSM or even LTE and so on.

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Waveguide flange

When we design and simulate waveguides we should attend that path input source waveguide is very important, that can make high efficiency coupling and low loss, we know that matching and coupling is very vital in Electronic and RF Devices.In waveguide excitation point is called waveguide flange in this post we want to discuss about it.

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DVB-T Gnuradio TX-RX, recording video receiver in bandwidth 1MB and frequency 461M

Today we share recorded video DVB-T receiver here, we use two Hackrf One with Gnuradio, we had 1MB bandwidth and 461M center frequency.In higher bandwidth we had not any ofdm symbol and we had error restart aquisition for more info please see former our blog post this and that link. So really HackRF One in Higher 1MB bandwidth is not good and it can not haldle high carrier modulation.

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The non-analytical solutions available solving electromagnetic equations with the introduction of software

And any electrical engineer you should familiar with Maxwell's equations. In electronic engineer we work with electronic or photonic or hybrid deveice and gate of understanding this deveice is electromagnetic and solid state physics and some electronic devices books.So every model that we see in electronic deveices is derived from Maxwell's equations. We in Bsc degree we solve electromagnetic question in a analytical methods, but in real world we can not use analytical methods,So we should swtich to methods course numerical analysis.So in this blog post we want to discuss about  numerical method to solve Maxwell's equation for different problems.

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Observing Random Jitter in HackRF One in High Bandwidth with High Carrier Modulation

Yet i work on DVB-T in HackRF one, in TX we can send DVB-T and we receive it with a hardware dongle DVB-T. but for receiving with SDR Based we had error: see this link for our older work or this link.

DVBT project receiver probelm OOrestart aquisition d_freq_offset: -5 Od_freq_offset: -5

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