by jacquelineh96 | Mar 5, 2024 | Amplifiers, Directional Couplers, Engineering Resources, Filters, Frequency Mixers, VCOs
Originally a Solution for Eliminating Static In the 1920s, many brilliant scientists applied themselves to the study of frequency modulation (FM). One of these scientists was a communications systems theorist who worked for AT&T named John Renshaw Carson. Carson...
by Rinchen Athup | Feb 13, 2024 | Engineering Resources
While traditional Frequency Division Multiplexing has been around for over 100 years, Orthogonal Frequency Division Multiplexing (OFDM) was first introduced by Robert W. Chang of Bell Laboratories in 1966.1,2,3,4 In OFDM, the stream of information is split between...
by minicircuitsadmin | Dec 19, 2023 | Engineering Resources, Measurement Methods & Techniques, Switches, Test Solutions
A Brief Primer on Beams and Streams In modern radio communications (particularly commercial cellular and Wi-Fi), Multiple-Input, Multiple-Output (MIMO) is a common method of utilizing multiple transmitting and receiving antennas to increase the capacity of the radio...
by minicircuitsadmin | Nov 30, 2023 | Amplifiers, Engineering Resources, Filters, Fixed Attenuators / Terminations, Frequency Mixers
The concept of the phased array antenna system was first put into practice by German Physicist Ferdinand Braun and his assistants in the spring of 1905. In short, he and his assistants carefully controlled the excitation phase of each antenna in an array and...
by minicircuitsadmin | Oct 28, 2023 | Directional Couplers, Engineering Resources, Surface Mount Assembly & Manufacturing Techniques
An ideal directional coupler has 0 dB of insertion loss, a constant coupling value vs. frequency, and infinite isolation and directivity. However, the physical, internal construction of directional couplers introduces frequency-dependent losses and finite...
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