RFIC Chip / MMIC – Radio Frequency Integrated Circuit

Product Specifications

Technical details and manufacturing context for Radio Frequency Integrated Circuit (RFIC/MMIC)

Definition

A Radio Frequency Integrated Circuit (RFIC), also known as a Monolithic Microwave Integrated Circuit (MMIC), is a critical component within radar sensor systems. It integrates multiple RF functions—such as amplification, mixing, filtering, and modulation/demodulation—onto a single semiconductor chip. In radar applications, RFICs handle the generation, transmission, reception, and initial processing of high-frequency electromagnetic signals, enabling precise target detection, ranging, and velocity measurement. This component is part of the Computer, Electronic and Optical Product Manufacturing industry and is classified as a component-level part. RFICs are fabricated using semiconductor materials such as Gallium Arsenide (GaAs), Silicon Germanium (SiGe), and Silicon (Si). Typical parameters include an operating frequency range of 2–18 GHz, output power (P1dB) of 20–30 dBm, gain of 15–25 dB, noise figure of 1.5–3.0 dB, input/output return loss of ≥10 dB, supply voltage of 3.3–5.0 V, current consumption of 50–200 mA, operating temperature range of -40 to +85 °C (per IEC 60068-2-1/2), storage temperature range of -55 to +125 °C (per IEC 60068-2-1/2), ESD tolerance (HBM) of ±1000 to ±2000 V (per IEC 61340-3-1), package types including QFN, SMD, and Bare Die, package size (footprint) of 3×3 to 8×8 mm, and weight of 0.1–1.0 g. These values are directory reference ranges and must be confirmed for the specific model and application. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

RFICs operate by manipulating high-frequency electrical signals (typically in the MHz to GHz range) using semiconductor devices like transistors, diodes, and passive components. In a radar sensor, the RFIC generates a transmitted signal, amplifies weak received echoes, down-converts them to lower frequencies for processing, and may perform initial filtering or modulation tasks. The integration of these functions onto a single chip reduces size, power consumption, and cost while improving reliability and performance.

Common Materials

Gallium Arsenide (GaAs), Silicon Germanium (SiGe), Silicon (Si)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Operating Frequency Range	2–18 GHz	Covers major radar bands; wider range requires multi-chip design.
Output Power (P1dB)	20–30 dBm	Higher power improves range but increases heat and current draw.
Gain	15–25 dB	Determines signal amplification; too high may cause oscillation.
Noise Figure	1.5–3.0 dB	Lower noise improves receiver sensitivity.
Input/Output Return Loss	≥10 dB	Ensures impedance matching; lower values cause signal reflection.
Supply Voltage	3.3–5.0 V	Common radar IC supply; must match system power design.
Current Consumption	50–200 mA	Affects power budget and thermal management.
Operating Temperature Range	-40–+85 °C	Military/aerospace grades may require -55 to +125°C.IEC 60068-2-1/2
Storage Temperature Range	-55–+125 °C	Ensures reliability during shipping and storage.IEC 60068-2-1/2
ESD Tolerance (HBM)	±1000–±2000 V	Higher tolerance reduces damage during handling.IEC 61340-3-1
Package Type	QFN, SMD, Bare Die	Affects assembly, thermal performance, and cost.
Package Size (Footprint)	3×3–8×8 mm	Smaller footprint enables compact radar modules.
Weight	0.1–1.0 g	Critical for airborne or portable radar systems.

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

Low-Noise Amplifier (LNA)
Amplifies weak received radar signals with minimal added noise, crucial for receiver sensitivity

Material: Semiconductor (GaAs/SiGe)
Power Amplifier (PA)
Boosts the transmitted radar signal to sufficient power levels for effective target illumination

Material: Semiconductor (GaAs/SiGe)
Mixer
Combines or separates frequency signals, used in radar for frequency conversion (e.g., down-converting received echoes)

Material: Semiconductor (GaAs/Si)
Voltage-Controlled Oscillator (VCO)
Generates the radio frequency signal used in radar transmission, with frequency tunable by voltage

Material: Semiconductor (GaAs/SiGe)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Radio Frequency Integrated Circuit (RFIC/MMIC).

Applied To / Applications

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

Radar Sensor

View system integration details

Manufacturers of Radio Frequency Integrated Circuit (RFIC/MMIC)

Manufacturer profiles associated with Radio Frequency Integrated Circuit (RFIC/MMIC).

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 16 September 2026

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

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Inspection readiness

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Frequently Asked Questions

What is the difference between RFIC and MMIC?

RFIC (Radio Frequency Integrated Circuit) and MMIC (Monolithic Microwave Integrated Circuit) are often used interchangeably. MMIC specifically refers to microwave frequencies, while RFIC covers a broader range including lower radio frequencies. In practice, both integrate RF functions on a single chip.

What materials are used to make RFICs?

Common materials include Gallium Arsenide (GaAs), Silicon Germanium (SiGe), and Silicon (Si). Each offers different performance characteristics in terms of frequency, power, and cost.

What are typical operating frequency ranges for RFICs in radar?

The directory lists a range of 2–18 GHz, covering major radar bands. Wider ranges may require multi-chip designs.

How should I verify RFIC specifications?

Always confirm model-specific values such as frequency range, output power, gain, noise figure, and standards with the legal manufacturer or supplier, as directory values are reference ranges.

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

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pressure:	Atmospheric to 1 atm (standard operating pressure, not pressure-sensitive)
other spec:	Frequency range: 0.1 GHz to 100 GHz (typical RFIC operational bandwidth)
temperature:	-40°C to +125°C (operational range, typical for industrial-grade RFICs)

Radio Frequency Integrated Circuit (RFIC/MMIC)

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards