High-Power Amplifier (HPA) for Satellite Communications

Product Specifications

Technical details and manufacturing context for High-Power Amplifier (HPA)

Definition

A High-Power Amplifier (HPA) is a critical component within a satellite transponder that receives low-power signals from the receiver section, amplifies them significantly, and outputs them at high power to the transmitting antenna for downlink to Earth stations. It ensures signal strength is sufficient to overcome path loss and maintain communication quality over long distances. The HPA is designed for use in satellite communication systems, typically operating in the C-band uplink frequency range of 5.85–6.45 GHz. It provides an output power ranging from 50 to 500 watts, depending on the application, and can operate in continuous wave (CW) or pulsed mode. The small-signal gain is typically 50–70 dB, with gain flatness of ±0.5 to ±1.5 dB over the full frequency band. The input and output VSWR are both 1.3:1 to 1.5:1, referenced to 50 ohms. The device requires a DC supply voltage of 24 V ±10%, with other voltages available on request. Power consumption ranges from 200 to 1500 watts, depending on output power. The operating temperature range is -40 to 85°C, with derating above 50°C, and storage temperature is -55 to 95°C. It operates in non-condensing relative humidity of 0 to 95%. The IP rating is IP54 to IP65, with outdoor units requiring IP65, per IEC 60529. The weight ranges from 5 to 20 kg, and approximate dimensions are 300×150×400 to 500×200×600 mm (W×H×D). Materials used include Gallium Arsenide (GaAs), Gallium Nitride (GaN), copper, aluminum, and ceramic substrates. The HPA uses active semiconductor devices such as GaAs FETs, GaN HEMTs, or traveling-wave tube amplifiers to boost signal power. For procurement, verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The HPA operates by taking a low-power RF input signal and using active semiconductor devices (such as GaAs FETs, GaN HEMTs, or traveling-wave tube amplifiers) to increase its power level through controlled energy conversion from DC power supplies. It maintains signal integrity while boosting amplitude to meet transmission requirements. The amplification process involves biasing the active devices, matching input and output impedances, and managing heat dissipation. The device is designed to operate within specified frequency and power ranges, ensuring linearity and efficiency. Proper operation requires correct DC supply voltage and thermal management. Monitoring output power and temperature can indicate performance degradation. Failure to maintain specified operating conditions may lead to reduced gain, distortion, or permanent damage.

Common Materials

Gallium Arsenide (GaAs), Gallium Nitride (GaN), Copper, Aluminum, Ceramic Substrates

Technical Parameters

Parameter	Typical range	Notes & selection driver
Output Power	50–500 W	CW or pulsed, depends on application
Frequency Range	5.85–6.45 GHz	C-band uplink
Gain	50–70 dB	Small-signal gain
Gain Flatness	±0.5–±1.5 dB	Over full frequency band
Input VSWR	1.3:1–1.5:1	50 ohm reference
Output VSWR	1.3:1–1.5:1	50 ohm reference
Supply Voltage	24 ±10% V DC	Other voltages on request
Power Consumption	200–1500 W	Depends on output power
Operating Temperature	-40–85 °C	Ambient, derate above 50°C
Storage Temperature	-55–95 °C	Non-operating
Relative Humidity	0–95 %	Non-condensing
IP Rating	IP54–IP65	Outdoor units require IP65IEC 60529
Weight	5–20 kg	Depends on power level
Dimensions (W×H×D)	300×150×400–500×200×600 mm	Approximate, varies with model

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Power Transistor Part
Primary amplification element that converts DC power to RF power

Material: GaAs or GaN semiconductor
Input/Output Matching Network
Optimizes impedance matching for maximum power transfer and minimizes signal reflection

Material: Copper traces on ceramic substrate
Heat Sink Part
Dissipates heat generated during amplification to maintain optimal operating temperature

Material: Aluminum alloy
Bias Circuit
Provides proper DC voltage and current to the transistor for amplification operation

Material: Copper, semiconductor components
Traveling-Wave Tube Optional
Vacuum-tube amplifying element used instead of solid-state devices.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for High-Power Amplifier (HPA).

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Satellite Transponder

View system integration details

Manufacturers of High-Power Amplifier (HPA)

Manufacturer profiles associated with High-Power Amplifier (HPA).

Sourcing High-Power Amplifier (HPA) from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What is the typical output power range of this HPA?

The output power ranges from 50 to 500 watts, depending on the application. It can operate in CW or pulsed mode. Confirm the exact value for your specific model with the manufacturer.

What frequency range does this HPA support?

It supports the C-band uplink frequency range of 5.85 to 6.45 GHz. Ensure your system operates within this band.

What are the input and output VSWR specifications?

Both input and output VSWR are 1.3:1 to 1.5:1, referenced to 50 ohms. This indicates good impedance matching, but verify with the manufacturer for your model.

What are the environmental limits for operation?

Operating temperature is -40 to 85°C, with derating above 50°C. Storage temperature is -55 to 95°C. Relative humidity is 0 to 95% non-condensing. Outdoor units require IP65 rating. Always check the datasheet for exact limits.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Buyer enquiry

Request manufacturing insight for High-Power Amplifier (HPA)

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	Atmospheric to 1 atm (sealed enclosure), altitude up to 15,000 ft
other spec:	Input Power: 100-240V AC, 50-60Hz; RF Input Power: -10 to +10 dBm; Cooling: Forced air or liquid cooling required above 500W output
temperature:	-40°C to +85°C (operational), -55°C to +125°C (storage)

High-Power Amplifier (HPA)

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards