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Jan 30, 2017
Microwaves and RF

Basics of Modulation and Demodulation (.PDF Download)  

Information can be sent from a transmitter to a receiver by means of modulation and demodulation, respectively, whether those signals are light waves moving through optical cables, radio waves through metallic cables, or radio waves propagating through the air. The electromagnetic (EM) waves that transport the information are referred to as carrier signals, while the information they carry may be in the form of audio, video, or data......More
Jan 25, 2017
Microwaves and RF

Inside Track with Kevin Kelly, CEO, LGS Innovations (.PDF Download)  

The last 20 years have seen the massive adoption of mobile communications and data services by the global user community, a remarkable expansion in worldwide wireless network capacity, and a meteoric rise in the wireless equipment and enabling technology markets. This virtuous cycle has driven both technological innovation and a continuously increasing demand for a decidedly finite resource in this ecosystem: RF spectrum....More
Jan 24, 2017
Microwaves and RF

Reversing 25 Years of Antenna Degradation (.PDF Download)  

Does anyone remember pulling out the antenna on your first mobile phone to make a call? Over the past 25 years, antenna design has changed radically for cell phones. While transitioning from 2G to 3G to LTE, we have incrementally and gradually sacrificed as much as 10 dB of link budget in some cases. It’s shocking but true: The network has improved dramatically, so we’ve been able to compromise performance in the handset antenna without much backlash from consumers......More
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