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MQH-1840CSP3
MMIC 18 - 40 GHz 90° Hybrid Coupler
The MQH-1840CSP3 is a MMIC 18 - 40 GHz quadrature hybrid. Passive GaAs MMIC technology allows production of smaller constructions that replace larger form factor circuit board constructions. The MQH-1840CSP3 exhibits excellent amplitude balance with broadband quadrature phasing between output ports. Low variation allows for accurate simulations using the provided S4P file taken from measured production units. Tight fabrication tolerances allow for less unit to unit variation than traditional splitter/combiner technologies.
| Parameter | Typ | Unit |
|---|---|---|
| Frequency Range | 18 to 40 | GHz |
| Isolation | 27 | dB |
| Nominal Phase Shift | 90 | ° |
| Phase Balance | 0.2 | ° |
| Amplitude Balance | 0.6 | dB |
Summary only – refer to the Electrical Specifications, Absolute Maximum Ratings, and Recommended Operating Range tables for complete details.
| Part Number | Description | Package | Green Status | Product Lifecycle | Export Classification |
|---|---|---|---|---|---|
| MQH-1840CSP3 | MMIC 18 - 40 GHz 90° Hybrid Coupler | CSP3 | RoHS REACH | Released | EAR99 |
| EVB-MQH-1840 | Evaluation Board, 18 - 40 GHz MMIC 90° Hybrid Coupler | EVB | RoHS REACH | Released | EAR99 |
Typical performance plots shown for port configuration A. Performance may vary in alternate configurations.
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| Parameter | Port Configuration | Test Conditions | Minimum Frequency (GHz) | Maximum Frequency (GHz) | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|---|---|
| Frequency Range | - | - | 18 | 40 | - | - | - | GHz |
| Amplitude Balance | A | Configuration A | 18 | 40 | - | 0.6 | - | dB |
| Excess Insertion Loss | A | Configuration A | 18 | 40 | - | 0.7 | - | dB |
| Impedance | - | All Ports | 18 | 40 | - | 50 | - | Ω |
| Isolation | A | Configuration A | 18 | 40 | - | 27 | - | dB |
| Mean Coupling | - | - | 18 | 40 | - | 3 | - | dB |
| Nominal Phase Shift | - | - | 18 | 40 | - | 90 | - | ° |
| Phase Balance | A | Configuration A | 18 | 40 | - | 0.2 | - | ° |
| Return Loss | - | All Ports | 18 | 40 | - | 25 | - | dB |
Excess Insertion Loss = Input to Output Insertion Loss - 3dB
The Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. If these limits are exceeded, the device may be inoperable or have a reduced lifetime.
| Parameter | Maximum Rating | Unit |
|---|---|---|
| Maximum Operating Temperature | 100 | °C |
| Maximum Storage Temperature | 125 | °C |
| Minimum Operating Temperature | -55 | °C |
| Minimum Storage Temperature | -65 | °C |
| RF Power Handling | 45 | dBm |
| Parameter | Details | Rating |
|---|---|---|
| ESD | < 250 Volts | HBM Class 0 |
| Dimensions | - | 3.50 x 3.50 mm |
| Moisture Sensitivity Level | - | MSL 1 |
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| Ground Paddle | Gnd | Ground paddle should be connected to RF ground |  |
| Pin 1 | NC | Pin 1 is not internally connected. It can be connected to ground for normal operation. | - |
| Pin 2 | Isolated | Pin 2 is isolated from the input. It is DC open to the other pins and open to ground. It should be connected to a 50 Ω load for normal operation. |  |
| Pin 3 | RF Input | Pin 3 is used as input. It is DC open to the other pins and open to ground. | |
| Pin 4 | NC | Pin 4 is not internally connected. It can be connected to ground for normal operation. | - |
| Pin 5 | 90° Output | Pin 5 is 90° output. It is DC open to the other pins and open to ground. | |
| Pin 6 | 0° Output | Pin 6 is 0° output. It is DC open to the other 4 pins and open to ground. | |
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| Ground Paddle | Gnd | Ground paddle should be connected to RF ground | |
| Pin 1 | NC | Pin 1 is not internally connected. It can be connected to ground for normal operation. | - |
| Pin 2 | RF Input | Pin 2 is used as input. It is DC open to the other pins and open to ground. | |
| Pin 3 | Isolated | Pin 3 is isolated from the input. It is DC open to the other pins and open to ground. It should be connected to a 50 Ω load for normal operation. | |
| Pin 4 | NC | Pin 4 is not internally connected. It can be connected to ground for normal operation. | - |
| Pin 5 | 0° Output | Pin 5 is 0° output. It is DC open to the other 4 pins and open to ground. | |
| Pin 6 | 90° Output | Pin 6 is 90° output. It is DC open to the other pins and open to ground. | |
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| Ground Paddle | Gnd | Ground paddle should be connected to RF ground | |
| Pin 1 | NC | Pin 1 is not internally connected. It can be connected to ground for normal operation. | - |
| Pin 2 | 90° Output | Pin 2 is 90° output. It is DC open to the other pins and open to ground. | |
| Pin 3 | 0° Output | Pin 3 is 0° output. It is DC open to the other 4 pins and open to ground. | |
| Pin 4 | NC | Pin 4 is not internally connected. It can be connected to ground for normal operation. | - |
| Pin 5 | Isolated | Pin 5 is isolated from the input. It is DC open to the other pins and open to ground. It should be connected to a 50 Ω load for normal operation. | |
| Pin 6 | RF Input | Pin 6 is used as input. It is DC open to the other pins and open to ground | |
| Port | Function | Description | DC Equivalent Circuit |
|---|---|---|---|
| Ground Paddle | Gnd | Ground paddle should be connected to RF ground | |
| Pin 1 | NC | Pin 1 is not internally connected. It can be connected to ground for normal operation. | - |
| Pin 2 | 0° Output | Pin 2 is 0° output. It is DC open to the other 4 pins and open to ground. | |
| Pin 3 | 90° Output | Pin 3 is 90° output. It is DC open to the other pins and open to ground. | |
| Pin 4 | NC | Pin 4 is not internally connected. It can be connected to ground for normal operation. | - |
| Pin 5 | RF Input | Pin 5 is used as input. It is DC open to the other pins and open to ground. | |
| Pin 6 | Isolated | Pin 6 is isolated from the input. It is DC open to the other pins and open to ground. It should be connected to a 50 Ω load for normal operation. | |
Download : Outline 2D Drawing Outline 3D Drawing Outline 3D STP
Download : Footprint Drawing
| Revision Code | Revision Date | Comment |
|---|---|---|
| - | 2026-04-16 | Initial Release |
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