These consist primarily of specialized passive & active devices such as low-intermodulation splitters & directional couplers, 1-port, 2-port, 4-port & 8-port indoor / outdoor directional taps, line passives hybrid splitters, connectors, filters, isolators, attenuators, drop amplifiers etc.
42.
The coupled output from the directional coupler can be used to monitor frequency and power level on the signal without interrupting the main power flow in the system ( except for a power reduction see figure 3 ).
43.
In addition to signal routing, the RF / Microwave Switch Matrix may also contain signal conditioning components including passive signal conditioning devices, such as attenuators, filters, and directional couplers, as well as active signal conditioning, such as amplification and frequency converters.
44.
With the decline of Cold War spending in the mid-1990s, the company diversified from the defense market by entering the commercial wireless infrastructure market with its Xinger-brand surface mount ( SMT ) component family, which included hybrid couplers, directional couplers, and power dividers.
45.
The company's portfolio includes amplifiers, attenuators, circulators, demodulators, detectors, diodes, directional couplers, front-end modules, hybrids, infrastructure RF subsystems, isolators, lighting and display solutions, mixers, modulators, optocouplers, optoisolators, phase shifters, PLLs / synthesizers / VCOs, power dividers / combiners, power management devices, receivers, switches and technical ceramics.
46.
I might mention at this point that I found this patent claiming to make a quasi-gaussian filter out of directional couplers ( microwave band ) but did not include it in my previous post because, quite frankly, I cannot understand what it is claiming to be doing.
47.
With directional couplers, directivity is a measure of the difference in dB of the power output at a coupled port, when power is transmitted in the desired direction, to the power output at the same coupled port when the same amount of power is transmitted in the opposite direction.
48.
The contents of such a kit may vary, but a typical package includes the modem itself, a CD of software to install on your computer, a short instruction manual, two coaxial cables, an Ethernet cable ( also called a Category 5 cable ) and a small device called a directional coupler.
49.
With electrical media HS buses, the physical architecture is like that with 3838 / 1553B, save that the central repeater has to be at one end of each of the collector and distributor lines : the RT's connections to these lines work preferentially in one physical direction along the bus-hence directional couplers.
50.
However, the losses in the directional couplers, etc ., especially for the RT furthest from the central repeater, and the limitations on dynamic range between the furthest ( and most attenuated ) and nearest ( and least attenuated ) RT, will limit the number of RTs operating to the standard that may be connected to the HS media.
