MITEQ offers over 5000 RF/Microwave Amplifiers in the largest standard amplifier
product line available today. Amplifier products include narrowband to multi-octave
amplifiers in the range from 1KHz to 65GHz. MITEQ also supplies amplifiers for radio-astronomy,
space, high-reliability, and military applications.
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MITEQ offers a full line of analog and digital PIN Attenuators with attenuation
ranges of 60 dB on all of our standard products. We also offer custom products including
an 8-bit digital attenuator with an LSB of 0.125 dB and maximum attenuation of 80
dB.
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MITEQ manufactures and designs high performance Microwave Bias Tees that operate
from 30 kHz to 40 GHz. These Bias Tee products feature: ultra-broadband performance,
low insertion losses, off-the-shelf delivery and compact designs.
MITEQ's Bias Tees are suitable for 40 Gb systems and typical Bias Tee applications
include: OC768 transmitters and receivers, general purpose test and measurement
systems. Some bias tee options are available such as custom frequency bandwidths
and different connector outputs.
Additional Bias Tee Applications Include: Biasing for photodiodes (vacuum and solid
state), Microchannel plate detectors, transistors, and triodes. High frequencies
are not leaking into a common power supply rail and noise from the power supply
does not appear on the signal line.
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MITEQ's converter modules include, but are not limited to single-, dual-, three-,
four- and five-channel converters. With extensive design options these systems and
sub systems can include low-noise, minimized PM noise, chanel to chanel tracking,
remote band/blanking/BIT selection and internal crystal references to name a few.
Some packaging options include: Weather proof enclosures, desktop enclosures, and
hermetically sealed.
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MITEQ designs and manufactures a broad range of high-quality Fiber Optic Links.
These fiber optic links can include: small compact size, bandwidths from 5 kHz to
18 GHz, low noise, high dynamic range, cooled and un-cooled DFB laser, plug and
play so there are no external control circuits required.
Fiber Optic Links include a transimpedance amplifier in both the fiber optic transmitter
and fiber optic receiver. These fiber optic products include operational status
monitor pins and much more.
Fiber Optic Links are characterized using a specific transmitter and receiver. It
is often possible to choose alternative transmitters and receivers to improve performance,
or reduce cost.
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MITEQ manufactures two distinctly different types of Frequency Discriminators. Both
types are utilized to convert an input frequency to a bipolar DC voltage corresponding
to frequencies above and below crossover (center frequency). Typical applications
of Frequency Discriminators include automatic frequency control (AFC) systems and
high-fidelity FM demodulation systems.
The narrow bandwidth type uses an input limiting amplifier to drive two staggered
tuned L-C circuits. Opposing rectification of the circuits create the discriminator
'S' curve. A video amplifier is utilized to provide adequate output slope
(specified in mV/MHz). The ability to precisely align the skirts of the tuned circuits,
which represents the linear bandwidth, is the major advantage of this type of design.
The wide bandwidth type of Frequency Discriminators employ delay line techniques
to achieve the desired frequency detection. A limiting amplifier drives an in-phase
power divider, where one port is delayed an appropriate amount and applied to a
double-balanced mixer being used as a phase detector. A wide bandwidth video amplifier
takes advantage of this design's extremely wide demodulation bandwidth. The
ability to process narrow input pulse widths with minimal distortion is the fundamental
advantage of this type of frequency discriminator.
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MITEQ designs and manufactures various types of Frequency Synthesizers, including
sources based on phase-locked-loop (PLL) technology to lock the phase of a voltage-controlled
oscillator (VCO) to that of an inherently more stable reference source, such as
a temperature-compensated crystal oscillator (TCXO) or an oven-controlled crystal
oscillator (OCXO). Such synthesizers can be designed with a single loop for optimal
frequency switching speed, or with multiple loops when lower noise performance is
required. In essence, they can be called "integer-N" synthesizers where N is the
multiplication factor used to determine the output frequency as a multiple of the
reference source frequency.
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MITEQ designs and manufactures one of the most extensive Mixer product lines on
the market today. There are over 400 Mixers in the standard catalog, with RF frequencies
up to 50 GHz.
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A modulator commonly varies some aspect (amplitude, phase or frequency) of an RF
carrier (f°, in proportion to a much lower frequency video or digital input
signal (fm). In general, the input frequency components of the modulation typically
extend from DC to 100 MHz, except for fast data links. In order to preserve the
information content superimposed on the RF carrier, one must insure that the output
system bandwidth is adequate to pass both upper and lower sidebands (i.e. fo + fm)
without distortion. In fact, system amplifier and channel distortion often will
add residual AM or PM modulation to an otherwise clean transmitter.
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Schottky diode Frequency Multipliers are lowest cost and require the least input
power (+10 dBm). Output noise is at room temperature (KTBW). The resulting current
waveforms, however, have a high duty cycle (ie, square wave=50%) and therefore,
higher multiplier harmonics above the fifth decay quickly.
Step-recovery diodes have impulsive waveforms with comb-like output spectrums. The
Frequency Multiplier input circuit is more complex requiring a compromise between
bandwidth and efficient coupling to the low diode series resistance. The required
input power is a function of the SRD capacitance and quickly rises with frequency
(+20 dBm typical at 1 GHz).
The hyper abrupt varactor diode (indistinguishable at high frequencies from the
SRD) yields the higher output powers and efficiency, provided that unwanted sidebands
are reactively terminated. MITEQ has successfully made efficient frequency doublers
and prescalers (halfers) at 10 and 20 GHz.
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MITEQ manufactures and designs one of the most extensive Frequency Oscillator product
lines on the market today.
MITEQ's standard oscillator product line includes: high-value phase-locked
coaxial resonator oscillators, phase-locked coaxial resonator oscillators, fundamental/multiplied
phase-locked coaxial resonator oscillators, lowest noise phase-locked dielectric
resonator oscillator, ultra low-noise phased-locked dielectric resonator oscillators,
variable frequency multi-source oscillators, phase-locked coaxial resonator oscillators,
multiplied phase-locked coaxial resonator oscillators, phase-locked crystal oscillators,
ultra low-noise crystal oscillator, multiplied crystal oscillator to 1 GHz.
MITEQ also offers a product line of free-running Dielectric Resonator Oscillators
which includes mechanically-tuned dielectric resonator oscillators, temperature
compensated dielectric resonator oscillators and electronically-tuned coaxial oscillators.
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MITEQ designs and manufactures a standard line of high quality Phase Shifters. We
specialize in developing phase shifters for critical space, telemetry, transceiver,
radar and EW applications.
Solid-state Phase Shifters incorporate a wide variety of techniques to achieve high
performance over a wide range of specification requirements. A combination of switched
line, loaded line, and switched reflection techniques are used to achieve minimum
loss and increased performance in constant phase designs.
All Phase Shifter designs are implemented using microstrip construction which enables
circuits to achieve high isolation and low VSWR. Integral TTL compatible logic circuits
are included in all digital phase shifters as standard. Designs are optimized to
handle power levels as high as 1 Watt CW.
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MITEQ designs and manufactures a broad line of digital PIN diode switches covering
multioctave bands from 80 MHz to 44 GHz.
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| Reflective Switches |
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Single Pole, Two Throw |
Single Pole, Three Throw |
Single Pole, Four Throw |
| Single Pole, Five Throw |
Single Pole, Six Throw |
Single Pole, Seven Throw |
Single Pole, Eight Throw |
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| Absorptive Switches |
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| Single Pole, Single Throw |
Single Pole, Two Throw |
Single Pole, Three Throw |
Single Pole, Four Throw |
| Single Pole, Five Throw |
Single Pole, Six Throw |
Single Pole, Seven Throw |
Single Pole, Eight Throw |
| Single Pole, Ten Throw |
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