10 W High PowerAmplifier MMIC

ReliaSat

17-20.5 GHz

Product Datasheet

K-HPA10W-1721

10 W GaN MMIC High Power Amplifier forK-band.

Overview

K-HPA10W-1721 is a High Power MMIC Amplifier
fabricated on Space Qualified 0.25 um GaN on
SiC. This MMIC operates from 17-20.5 GHz anddelivers >10 W saturated output power across theband, with power-added efficiency in excess of25% and large-signal gain of 20 dB.

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The RF ports are matched to 50 Ω with integrated
DC blocking capacitors. The part incorporates
an output power detector to assist with system
integration and is well suited for satellite
communications and point to point applications.

Features

Frequency range 17-20.5 GHz
Power >10 W saturated
Small signal gain 25 dB
Large signal gain 20 dB
Integrated power detector
PAE: >25% at Pin=20 dBm
Bias: VD=25 V, IDQ=300 mA, VG~-3.6 V
Chip dimension: 3.6 x 2.9 x 0.1 mm

Applications••••

Functional Diagram
Vg1

Vg2 Vd1

Vd2

Vg3

Vd3

Vdet

Vref

Satellite communications
RadarMobile communications
5G
Available asRF IN

K-HPA10W-1721

17-20.5 GHz bare die GaN HPA

K-HPA10W-1721-EVAL

17-20.5 GHz bare die GaN HPA
evaluation board

K-HPA10W-1721-SM

17-20.5 GHz packaged GaN HPA

K-HPA10W-1721-SM-EVAL

17-20.5 GHz packaged GaN HPA
evaluation board

K-HPA10W-1721-SSPA

17-20.5 GHz GaN solid state power
amplifier

DOC REV 8

Page 1 of 10

RF OUT

Vg1

Vg2 Vd1

K-HPA10W-1721

Vd2

Vg3

Vd3

Vdet

VrefIssue Date: 20/04/2023

Information furnished by ReliaSat is believed to be accurate. No responsibility is assumed by ReliaSat for its use, nor for any infringements on the rights of other parties that may result for the useof the information herein. All specifications are subject to change without notice.

10 W High Power
Amplifier MMIC

ReliaSat

17-20.5 GHz

Product Datasheet

Electrical Specification

Freq 17-20.5 GHz, Ta=25 oC Vd=25 V, Idq=300 mA, Zo=50 ΩParameter

Test Conditions

Operational Frequency Range

Min

Typ

17.0

High

Unit

20.5(GHz)

Input Return Loss

17-19 GHz
19-20.5 GHz
17.5-20.5 GHz

262210

Output Return Loss

17.5-20.5 GHz

10(dB)

17.5-19.5 GHz
19.5-20.5 GHz
Pin=20 dBm
17.5-19 GHz
19-20 GHz
20.5 GHz

4240(dBm)

332520(%)

0.03(dB/oC)

Small Signal Gain

Output Power at Saturation

Power Added Efficiency

Output Power Temperature Coefficient

19 GHz, Psat
-40 to 85 oC

(dB)
(dB)

Absolute Maximum Ratings
Parameter

RatingDrain Voltage (Vd)30 V

Gate Voltage Range (Vg)

-8 to 0 V

Drain Current (Id)

2.5 A

Power Dissipation (PDISS) 85 OC

44 W

Input Power (Pin)

23 dBmMounting Temperature (30 seconds)

260 OC

Storage Temperature-55 to 150 OC

Junction Temperature

200 OC

Exceeding any one or combination of these limits may cause
permanent damage to this device. Sustained operation near thesesurvivability limits is not recommended.

Recommended Operating Conditions

K-HPA10W-1721

Parameter

RatingDrain Voltage (Vd)20-30 V

Gate Voltage (Vg)

-3.6 (TYP)

Drain Current, Quiesent (Idq)

300 mA

Junction Temperature<200 OC

Issue Date: 20/04/2023

DOC REV 8Page 2 of 10

Information furnished by ReliaSat is believed to be accurate. No responsibility is assumed by ReliaSat for its use, nor for any infringements on the rights of other parties that may result for the useof the information herein. All specifications are subject to change without notice.

10 W High Power
Amplifier MMIC

ReliaSat

17-20.5 GHz

Product Datasheet

Thermal Reliability Information
Parameter

Test Conditions

Value

Thermal Resistance (θjc)(1)

Tbase= 85 oC, Vd=25 V, Id=0-1.5 A

2.5UnitsoC/W

Notes:

Thermal resistance measured using Raman Thermography on device channel referenced to back ofpackage.

Median Time To Failure vsChannel Temperature
0.25 um GaN process

Channel Temperature vs Pout

Power Consumption

DC power consumption vs output power

K-HPA10W-1721

Issue Date: 20/04/2023

DOC REV 8Page 3 of 10Information furnished by ReliaSat is believed to be accurate. No responsibility is assumed by ReliaSat for its use, nor for any infringements on the rights of other parties that may result for the useof the information herein. All specifications are subject to change without notice.

10 W High Power
Amplifier MMIC

ReliaSat

17-20.5 GHz

Product Datasheet

Small Signal Performance Curves
VD=25 V, IDQ=300 mA, VG~-3.6 V typical, TA=25 OC

Input Return Loss vs Frequency

Small Signal Gain vs Frequency

Reverse Gain vs Frequency

Output Return Loss vs Frequency

K-HPA10W-1721

Issue Date: 20/04/2023

DOC REV 8Page 4 of 10

Information furnished by ReliaSat is believed to be accurate. No responsibility is assumed by ReliaSat for its use, nor for any infringements on the rights of other parties that may result for the useof the information herein. All specifications are subject to change without notice.

10 W High Power
Amplifier MMIC

ReliaSat

17-20.5 GHz

Product Datasheet

Large Signal Performance Curves

VD=25 V, IDQ=300 mA, VG~-3.6 V typical, TA=25 OC

Pout vs Pin vs Frequency

Gain vs Pin vs Frequency

PAE vs Pin vs Frequency

Drain Current vs Pin vs Frequency

Power Detect Voltage vs Pout

K-HPA10W-1721

Issue Date: 20/04/2023

DOC REV 8Page 5 of 10

Information furnished by ReliaSat is believed to be accurate. No responsibility is assumed by ReliaSat for its use, nor for any infringements on the rights of other parties that may result for the useof the information herein. All specifications are subject to change without notice.

10 W High Power
Amplifier MMIC

ReliaSat

17-20.5 GHz

Product Datasheet

Large Signal Performance Curves
VD=25 V, IDQ=300 mA, VG~-3.6 V typical, TA=25 OC

Pout vs Frequency vs Pin

PAE vs Frequency vs Pin

Output Power vs Frequency vs Temperature

K-HPA10W-1721

Issue Date: 20/04/2023

DOC REV 8Page 6 of 10

Information furnished by ReliaSat is believed to be accurate. No responsibility is assumed by ReliaSat for its use, nor for any infringements on the rights of other parties that may result for the useof the information herein. All specifications are subject to change without notice.

10 W High Power
Amplifier MMIC

ReliaSat

17-20.5 GHz

Product Datasheet

Recommended Application Circuit

K-HPA10W-1721

Issue Date: 20/04/2023

DOC REV 8

Page 7 of 10

Information furnished by ReliaSat is believed to be accurate. No responsibility is assumed by ReliaSat for its use, nor for any infringements on the rights of other parties that may result for the useof the information herein. All specifications are subject to change without notice.

10 W High Power
Amplifier MMIC

ReliaSat

17-20.5 GHz

Product Datasheet

Bill Of Materials
PartVale

Case Size

C1, C2, C3, C4, C5. C6. C7, C8, C9100 pFSLC

C10, C12, C14

4.7 uF

1608 (0603)

C11, C13, C15, C16, C17

1 uF

1608 (0603)

C18, C19, C20, C21

100 nF

1608 (0603)

R1, R2, R3

10 Ohm1005 (0402)

R4, R5, R6, R7

2.5k Ohm

1005 (0402)

BiasSequences
Bias Up Sequence

Bias Down Sequence

1. Set ID limit to 2.5 A, IG limit to 50 mA

1. Turn off RF supply

2. Apply -5 V to VG

2. Reduce VG to -5 V

3. Apply +25 V to VD; IDQ is ~0 mA

3. Set VD to 0 V

4. Adjust VG until IDQ = 300 mA (VG~ -3.6 V)

4. Turn off VD supply

5. Turn on RF supply

5. Turn off VG supply

Arrangement

G1, G2, and D1 can be biased from either side, with the non-biased side left open.
G3 can be biased from either side, with the non-biased side bonded to a 100 pF SLC.
D2 and D3 must be biased from both sides.
Drain side capacitors should be 35 V minimum rating.

Detector Operation

K-HPA10W-1721 includes power detectors on both sides of the device to facilitate
integration into larger systems. The power detector requires an external 5V supply.
For temperature compensation, the VDET and VREF outputs can be connected
to a voltage comparator circuit, the output from which can be fed into an ADC ormultimeter for the result.

K-HPA10W-1721

Issue Date: 20/04/2023

DOC REV 8Page 8 of 10Information furnished by ReliaSat is believed to be accurate. No responsibility is assumed by ReliaSat for its use, nor for any infringements on the rights of other parties that may result for the useof the information herein. All specifications are subject to change without notice.

10 W High Power
Amplifier MMIC

ReliaSat

17-20.5 GHz

Product Datasheet

Outline drawing

Die Packing Information
All die delivered using gel-packs unless otherwise requested.

K-HPA10W-1721

Issue Date: 20/04/2023

Notes
1. All dimensions are in um
2. Typical DC bond pads are 86 um square
3. RF bond pads are 86 um square
4. All pads have gold metallisation
5. Gold backside metallisation
6. Backside metal is ground
7. Connections are not required for unlabelledbon pads
8. Die thickness is 100 um

DOC REV 8Page 9 of 10Information furnished by ReliaSat is believed to be accurate. No responsibility is assumed by ReliaSat for its use, nor for any infringements on the rights of other parties that may result for the useof the information herein. All specifications are subject to change without notice.

10 W High Power
Amplifier MMIC

ReliaSat

17-20.5 GHz

Product Datasheet

Pad Descriptions
NameDescription

RFIN

Input RF pad. This pad is AC coupled

RFOUT

Output RF pad. This pad is AC coupled

Dx

Drain bias pad for stage x

Gx

Gate bias pad for stage x

DEVoltage detector

REVoltage reference detector

BOTTOMThe die backside must be connected to RF/DC ground

General Notes On Assembly

Die should be mounted on conductive material such as gold-plated metal to provide
a good ground and suitable heat sink, if necessary.
1. Attaching the die using Au/Sn preforms is preferable. The Eutectic melt for
Au/Sn occurs at approximately 280 oC so the die (plus mount and preform) isinitially heated up to 180 oC and then it is heated for approximately 10 seconds
to 280 oC using a nitrogen heat gun.
2. Pure, dry nitrogen should be used as the heat source.
3. If the devices cannot be lifted/ placed by a vacuum device, then ESD die-lifting
tweezers are preferable.
4. Supply lines should be decoupled with 100 pF capacitors.
5. Aluminium wire must not be used.

Handling Precautions

Parameter					ESD - Human Bodel Model (HBM)		

Rating
TBD

These electronic devices are sensitive toelectrostatic discharge (ESD) and can be damaged
by static electricity. Proper ESD control techniquesshould be used when handling these devices.

Contact Information
ReliaSat European Offices
e: sales@reliasat.com
www.reliasat.com
K-HPA10W-1721

Issue Date: 20/04/2023

DOC REV 8Page 10 of 10

Information furnished by ReliaSat is believed to be accurate. No responsibility is assumed by ReliaSat for its use, nor for any infringements on the rights of other parties that may result for the useof the information herein. All specifications are subject to change without notice.