Microwave amplifiers
Electrical machines and apparatus, having individual functions, not specified or included elsewhere in this chapter; parts thereof: > Other machines and apparatus: > Other: > Microwave amplifiers
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8543.70.80.00
GaN Solid-State Power Amplifier SSPA-100W
A gallium nitride (GaN) based solid-state microwave amplifier delivering 100W output power in the 2-6 GHz frequency range, used in radar systems and satellite communications. It falls under HTS 8543.70.80.00 as a microwave amplifier, which boosts microwave frequency signals for transmission applications. These devices operate on principles of amplifying signals above 300 MHz in the microwave spectrum.
Traveling Wave Tube Amplifier TWTA-40GHz
A high-power traveling wave tube (TWT) microwave amplifier operating at 40 GHz with 200W output, essential for satellite uplinks and deep-space communications. Classified under HTS 8543.70.80.00 for its function as a microwave signal amplifier using vacuum tube technology. It amplifies weak microwave signals to high power levels for long-distance transmission.
Low Noise Block Amplifier LNB Ku-Band
A Ku-band (11-14 GHz) low noise block downconverter amplifier used in satellite TV reception systems to amplify weak satellite signals. Falls under HTS 8543.70.80.00 as a specialized microwave amplifier despite its downconversion function, due to primary amplification role. It converts and amplifies satellite microwave signals for consumer dish antennas.
MMIC Microwave Monolithic Integrated Circuit Amplifier
A GaAs MMIC amplifier chip operating 8-12 GHz with 20 dB gain, used in phased array radar and 5G mmWave systems. HTS 8543.70.80.00 covers this as a microwave amplifier IC, distinct from general semiconductor devices. It provides compact, high-frequency signal amplification for modern RF applications.
X-Band Pulsed Radar Amplifier Module
Modular solid-state amplifier for X-band (8-12 GHz) pulsed radar applications, delivering 50 kW peak power for military and weather radar systems. Classified under HTS 8543.70.80.00 for microwave amplification function in pulsed operation mode. Essential for high-resolution radar target detection and tracking.
Ka-Band Satellite Uplink Power Amplifier
High-power Ka-band (26-40 GHz) SSPA for satellite communication earth stations, providing 100W linear power for broadband internet backhaul. HTS 8543.70.80.00 applies to this microwave amplifier used in satellite transmission links. Supports high-data-rate satellite communications with low distortion amplification.
5G mmWave Base Station Amplifier
mmWave amplifier module for 5G base stations operating 24-40 GHz with massive MIMO beamforming capability. Under HTS 8543.70.80.00 as microwave amplifier for cellular infrastructure. Enables high-capacity 5G networks through advanced phased array amplification.
Microwave Ablation Medical Amplifier
Precision microwave amplifier for medical tissue ablation systems operating at 2.45 GHz, delivering controlled power for tumor treatment. HTS 8543.70.80.00 covers this specialized microwave amplifier despite medical application. Provides stable RF power for minimally invasive cancer therapy.
S-Band Weather Radar Amplifier
High-power S-band (2-4 GHz) amplifier for Doppler weather radar systems, providing 250 kW peak power for precipitation mapping. Classified HTS 8543.70.80.00 as microwave amplifier for meteorological applications. Critical for severe weather detection and aviation safety.
C-Band Marine Radar Solid-State Amplifier
Solid-state C-band (4-8 GHz) amplifier for commercial marine navigation radars, 25 kW peak power with pulse compression. HTS 8543.70.80.00 for microwave amplification in maritime safety systems. Enables collision avoidance and navigation in poor visibility conditions.