Nova Microwave ETCE0255 2.4–2.7GHz 250W Wideband Circulator

The Nova Microwave ETCE0255 is a high-power wideband drop-in RF circulator covering 2.400 to 2.700 GHz.

It supports up to 250 W forward power and 100 W reverse power, with 21 dB minimum isolation, 0.21 dB maximum insertion loss and 1.20:1 maximum VSWR. Its wider 300 MHz operating bandwidth makes ETCE0255 suitable for RF power amplifiers, wireless infrastructure and transmitter systems that need broader frequency coverage than a narrowband circulator.

For additional products, visit our Nova Microwave circulators and isolators page.

ETCE0255 Key Specifications

Why Choose ETCE0255?

2.4–2.7 GHz Wideband Coverage

ETCE0255 covers a 300 MHz bandwidth from 2.4 to 2.7 GHz.

This makes it useful where one circulator must operate across a wider frequency range instead of being optimized for a narrow band.

Typical design scenarios include:

• Wideband RF power amplifiers

• Multi-frequency transmitter platforms

• Wireless infrastructure

• Broadband RF test systems

• Communication equipment covering multiple channels

For a narrower 2.3–2.5 GHz band with lower insertion loss, see the Nova Microwave ETC0240 250W low-loss circulator.

250 W High-Power Capability

ETCE0255 supports up to 250 W forward RF power.

This makes it suitable for high-power PA output stages and transmitter systems where standard circulators may not provide sufficient power handling.

The device also supports up to 100 W reverse power, which is important when antenna or load mismatch produces reflected RF energy.

0.21 dB Maximum Insertion Loss

The specified maximum insertion loss is 0.21 dB.

Although this is slightly higher than narrowband ETC models such as ETC0240, the trade-off is significantly wider frequency coverage.

For many broadband RF systems, this balance between low insertion loss and wider bandwidth is more important than achieving the absolute minimum loss at a narrower operating band.

21 dB Minimum Isolation

ETCE0255 provides 21 dB minimum isolation.

Adequate isolation helps reduce the amount of reflected RF energy that can return toward the amplifier or transmitter stage, improving system stability and protecting sensitive RF components.

Typical Applications

Nova Microwave ETCE0255 can be considered for:

• 2.4–2.7 GHz RF power amplifiers

• High-power wireless transmitters

• Cellular and communication infrastructure

• Broadband RF transmitter systems

• Radar and microwave subsystems

• Antenna protection networks

• Duplexing and signal-routing applications

• High-power RF test equipment

The final design should confirm continuous power, peak power, reflected power, thermal conditions and mechanical integration requirements.

ETCE0255 vs ETC0240

ETCE0255 and ETC0240 both support 250 W forward power, but they are optimized for different requirements.

Choose ETCE0255 when the system needs broader 2.4–2.7 GHz coverage.

Choose ETC0240 when the system operates within 2.3–2.5 GHz and lower insertion loss is more important.

For additional guidance, see our Nova Microwave High-Power Low-Loss Circulator Selection Guide.

ETCE0255 vs ETC0260

ETC0260 is another nearby Nova Microwave model covering the upper portion of the ETCE0255 frequency range.

ETCE0255 is more suitable when 250 W forward power and wider bandwidth are required.

ETC0260 may be preferable when the operating band is limited to 2.5–2.7 GHz and lower insertion loss is the priority.

How to Select ETCE0255 for Your RF System

Before specifying ETCE0255, confirm the following:

Frequency Coverage

The entire operating band should remain within 2.400–2.700 GHz, including frequency tolerance and system margin.

Forward Power

Check both normal and peak RF output power. Avoid designing a system that continuously operates at the maximum rated value without appropriate engineering margin.

Reflected Power

Confirm expected load VSWR and worst-case reflected power.

ETCE0255 is specified for up to 100 W reverse power, but actual system conditions should still be evaluated carefully.

Thermal Conditions

High RF power combined with insertion loss produces heat. Mechanical mounting and thermal management therefore remain important even with a low-loss circulator.

Drop-In Integration

ETCE0255 is a drop-in device intended for integration into an RF module or housing.

Mechanical dimensions, RF transitions and grounding should be confirmed against the required configuration before production design.

Related Nova Microwave Models

For a broader comparison of Nova Microwave products, see the RF Circulators & Isolators Selection Guide.

ETCE0255 Stock, Price and Lead Time

When sourcing Nova Microwave ETCE0255, procurement teams should confirm:

• Full part number

• Required quantity

• Current stock status

• Manufacturer lead time

• Required delivery date

• Frequency and RF power requirements

• Any special mechanical requirements

DataStorageIC supports Nova Microwave component sourcing for prototype, maintenance and production applications.

Contact DataStorageIC for Nova Microwave ETCE0255 stock, pricing, lead time and RFQ support.