are generally associated with devices designed to reduce or remove group delay variations across a filter band.
However, some equalizers are meant to flatten gain across the operational band of an amplifier, filter, or complete
Higher order filters, with corresponding greater out-of-band attenuation, exhibit higher levels of group
delay variations at the band edges. Group delay variation distorts signals by varying the time that the spectral
components to move from the input to the output of the filter. Square waves, for instance, contain their highest
frequency components at the band edges, so on a filter with a lot of group delay, the square wave will exit with
rounded and otherwise distorted edges. Such distortion can (and will) negatively affect the bit error rate (BER)
of digital communications.
Please check with RF Cafe advertisers first.
My policy is to only list companies that actually manufacture product or offer services related to the page title subject.
Product distributors and sales representatives are not listed (they have their own page). This helps guarantee that each
listing offers a unique product or service. NOTICE: I am no longer adding hyperlinks due to so many companies asking to
be removed because of some issue with Google Statistics. Your best bet is to use a search engine to find company
websites directly. If you are interested in advertising, please visit my
Advertising information page
Aeroflex-Inmet | aeroflex-inmet.com | 888-244-6638 | Ann Arbor, MI
Adapters, amplifiers, attenuators,
bias tees, DC blocks, gain equalizers, power dividers, terminations.
Akon | akoninc.com | 408-432-8039 | San Jose, CA
Microwave amplifiers 0.5 to 20.0 GHz, power
dividers and gain (slope) equalizers 1.0 to 18.0 GHz, converter assemblies 2.0-20.0 GHz, filter banks and switch
filter banks 2.0-18.0 GHz, discriminators.
Blueline Engineering Corp | bluelineengineering.com | 203-838-8296 | Norwalk, CT
Components, 100 MHz-40 GHz, including amplifiers, equalizers, DLVA's, SDLVA's, Log IF, integrated subassemblies,
switched filters, switched multipliers, upconverters, and downconverters.
Custom Microwave Components, Inc | customwave.com | 510-651-3434 | Fremont, CA
microwave PIN diode & GaAs FET switches, switch matrices, switch/filter matrices, analog & digital attenuators
and phase shifters, limiters, power dividers/combiners, couplers, fixed & variable equalizers.
Eclipse Microwave, Inc | eclipsemicrowave.com | 408-526-1100 | San Jose, CA
manufactures a wide selection of microwave products including microwave mixers, frequency doublers, detectors, equalizers,
pin diode limiters, broadband couplers, broadband power dividers.
Inmet - (now Aeroflex)
inmetcorp.com | 888-244-6638 | Ann Arbor, MI
Fixed, 2.4mm, 2.92mm,
3.5mm, 7mm, 7/16, SMA, N, F, BNC, TNC, GPO connectors, from dc to 2, 4, 6, 12.4, 18, 26.5, 40 & 50 GHz, values
0 to 60 dB, power to 300 W.
Mica Microwave (now Mercury Systems)
mica-mw.com | 209-825-3977 | Manteca, CA
isolators, mixers, equalizers, phase shifters.
Microwave Circuits, Inc | diplexers.com | 434-455-2800 | Lynchburg, VA
RF/Microwave filters, diplexers and duplexers from DC - 20 GHz, tunable filters and cavities, ceramic filters, surface
mount filters, notch filters.
Midwest Microwave (now Emerson Network Power)
midwest-microwave.com | 734-429-4773 |
Attenuators, terminations, DC blocks, couplers, power dividers, equalizers, phase shifters,
adapters, cable assemblies, connectors - SMA, BMA, N Type, 7 mm, 3.5mm, QPL/DSCC approved products, tools, gauges,
NeoPhotonics Corp | neophotonics.com | 408-232-9200 | San Jose, CA
Provider of photonic
integrated circuit-based modules, components and subsystems for use in optical communications networks including
the Dynamic Channel Equalizer product line which is used to configure ROADMs and Optical Nodes to equalize or block
individual optical channels and enables dynamic provisioning in the network.
R.A. Wood Associates | rawood.com | 315-735-4217 | Utica, NY
Engineering consulting services,
computer automated test design & development, engineering prototypes & low rate manufacturing, RF/Microwave
system design & analysis, subcontract specifications, wireless system design, custom software program development,
LabVIEW software development, lectures & training classes, computer consulting services. Software: SpurFinder®,
TunerHelper®, RFSpecTest®, PathLossSolver®, Painless Extraction®. Equalizers on Demand - amplitude flatteners.