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"Inventing For Tomorrow"
NON-REFLECTIVE LIMITER
FRONT-END OVERLOAD PROTECTION WITHOUT CAUSING RECEIVER "BLANK OUT"
PRODUCT OVERVIEW
LIMITER COMPARISON
THEORY
The ARS Non-Reflective Limiter (NRL) is not like a conventional diode limiter, rather a linear absorptive device as it adds attenuation proportional to the amount of signal above its threshold.
Since the Non-Reflective Limiter (NRL) is absorptive, it does not re-radiate the energy back to the antenna. Additionally, due to the Non-Reflective Limiter’s linearity, it does not add Intermodulation Distortion (IMD).
The Non-Reflective Limiter (NRL) is normally in its low loss state until the presence of a large signal. The NRL’s primary parameter is the maximum RF power, and is chosen to reflect the largest signal that would be possible.The Non-Reflective Limiter’s attack and release times are quick, much faster than an AGC approach.
Please note that the NRL does not replace lightning suppression devices.
APPLICATION
The 50x series of non-reflective limiters may be thought of (or modeled) as a progressive attenuator.
The unit has low insertion loss when the input RF power is below the threshold level. As the RF input exceeds the threshold, attenuation is proportionally inserted to maintain a constant output level. The output level is the same as the threshold level.
NRL TIMING
Transient Timing
ADDITIONAL INFORMATION
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HF Band RF signal limiter intended for front end protection in transmitter co-located environments.
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50x series does not distort (clip) the incoming signals nor degrade the system's match (impedance).
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50x series does not reflect energy back to the antenna.
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When in limiting, the unit proportionately attenuates the incoming signals, preserving the system's linear performance and match.
LIMITING VS. THRESHOLD
DEVICE SPECIFICATIONS
NR Limiters -
Device Specs Table