Four new connectorized diplexers, with crossover frequencies of 4, 5, 8, and 8.5 GHz complement our lineup of low-loss high-rejection diplexers that span DC to 40GHz. The MDPX series are MMIC designs offering the best in repeatable reliable performance. Our diplexers are useful not only in splitting a signal into two desired paths, but also as reflectionless lowpass or highpass filters when terminating the unused port. Common applications include placement after mixers and multipliers to absorb out-of-band harmonics. Marki Microwave offers a wide range of filters and diplexers in connectorized, surface mount, and MMIC die packaging.

We’re introducing two surface mount MMIC limiters designed to protect sensitive RF components from high power conditions, while also maintaining high linearity during small-signal operation. HLM-40PSM offers a wide DC to 40GHz bandwidth while maintaining very low 0.7dB loss at 20GHz. Power handling is rated at 2.5W CW and 9.5W peak. For higher power applications we designed the HLM-20PSM, a DC-20GHz solution rated at 5W CW and 50W peak. Our Schottky diode design provides faster recovery time than traditional PIN diode approaches, and the MMIC fabrication process ensures repeatable part-to-part performance. These high performance limiters are suitable for pulsed radar, electronic warfare, and communications applications and are offered in 4x4mm QFN. Evaluation boards are also available.

Introducing four new mmWave LO driver amplifiers optimized to drive our high performance mmWave mixers and multipliers. Bandwidths range from 11-38GHz to 30-60GHz, gain up to 20dB, and Psat up to +21dBm – enough power to drive our L, H and S diode mixers and multipliers. AMM-7199, AMM-7200, and AMM-7210 operate up to 50GHz and are offered in small 3x3mm QFN, bare die or connectorized modules. AMM-7203 operates 30 to 60GHz with 12dB gain and 4.4dB NF, and is offered in bare die or connectorized module.

Introducing Marki Microwave’s first MMIC gain blocks, the AKA series of InGaP HBT amplifiers with a bandwidth of DC to 14 GHz. Four options are available with gain from 13 to 19dB, P1dB up to +16dBm, and operating at a low 50mA from a single positive supply. These amplifiers are packaged as a small 0.40 x 0.43 mm wire-bondable chip, form-fit compatible with obsolete InGaP gain blocks from other vendors.

Marki Microwave attenuators provide precision-grade attenuation accuracy and VSWR, enabling the most demanding applications up to 110 GHz. The new ATN06-0067 and ATN10-0067, with 6 and 10dB attenuation respectively, support frequencies from DC to 67 GHz and feature high quality 1.85mm connectors. We co-simulated our MMIC attenuator design with our high quality connectors to ensure optimal performance across the entire frequency range. Manufactured in our factory in California, we offer F/F, M/F, and M/M connector options to minimize crucial interconnect losses in your setup. For applications above 67 GHz we recommend our DC-110GHz ATN06-00110 and ATN10-00110. Our precision-grade attenuators provide signal attenuation and VSWR matching for use in 5G, SATCOM, automotive radar, and a variety of high-speed data applications.

Introducing our first GaAs MMIC filter in QFN, the Ku-band MFB-1445SM, to complement our wide range of MMIC filters in bare die. MMIC filters are extremely small, repeatable, and reliable alternatives to traditional filter approaches and are 4x smaller than competing thin film solutions. The center frequency of the MFB-1445SM is 14.45GHz with 1dB passband of 13.6 to 15.1 GHz, excellent return loss >20dB, and >35dBc of stopband suppression. Our design approach results in no reentrant modes eliminating the need for an additional lowpass filter in ultra broadband applications. Our MFB Series filters are also extremely temperature stable – download the MFB-1445SM datasheet for plots. This filter is offered in 3x3mm QFN, with connectorized evaluation boards also available.

MFB-1445SM: Center Freq 14.45 GHz | Low Freq 1dB Cutoff 13.6 GHz | High Freq 1dB Cutoff 15.1 GHz | S-Params .zip

The new MMIQ-1040 IQ mixers provide exceptional sideband suppression and L-to-R isolation over an RF/LO bandwidth of 10 to 40 GHz, while offering the high linearity performance that Marki mixers are known for. With a wide IF bandwidth covering DC to 10GHz, this IQ mixer combines with the latest ADCs and DACs to enable processing of ultrawide instantaneous bandwidths for EW, radar, SATCOM, and 5G. Add one of our MMIC quad hybrids for image-reject or single-sideband operation. MMIQ-1040LSM operates with a low +10dBm LO drive, whereas the high linearity MMIQ-1040HSM requires a nominal +20dBm LO to provide +26dBm IIP3. Both are offered in 4x4mm QFN. Evaluation boards are available.

MMIQ-1040LSM

MMIQ-1040HSM

Are you being asked to design smaller and smaller frequency converters, while also increasing the number of channels? That’s why we designed the MT3A-0113H. We’ve combined our legendary high linearity T3 mixer with our low phase noise LO driver amplifier to provide the ultimate combination of performance and size. This triple-balanced mixer provides an LO/RF bandwidth of 1GHz to 13GHz, and an overlapping IF bandwidth spanning 500MHz to 8.5GHz. The MT3A-0113H only requires +6dBm LO input for high linearity, and with increased LO can achieve up to +30dBm IIP3. Available as wire-bondable die or connectorized package.

MT3A-0113H: RF/LO 1 to 13 GHz | IF .5 to 8.5 GHz | LO Drive +3 to +15 dBm | CL 9.5 dB | IIP3 +28 dBm

Save design time and time to market by using a proven bias solution from the high frequency specialists at Marki. Our new line of surface mount bias tees are built using our proprietary wire-wound coil technology and precise assembly process enabling ultra-broadband resonance-free operation in a compact .150” x .220” package. BTL models offer the lowest frequency extension, 500 kHz, with the option to extend further to 5 kHz by using an external coil. Optional bypass capacitors can be added near the DC input port to filter noise on the DC line. The BT models include the bypass capacitor on the DC line and operate down to 20 MHz. Both models support up to 35 GHz operation with low insertion loss and high return loss. Common applications include amplifier bias, laser diode bias, and DC level shifting. We also offer a wide selection of broadband connectorized bias tees to 65 GHz.

Marki Microwave 1mm attenuators provide precision-grade attenuation accuracy and VSWR, enabling the most demanding applications up to 110 GHz. Harnessing decades of microwave assembly experience and utilizing the latest MMIC technologies our engineers have crafted the highest performance and most reliable attenuators on the market. Available in 6dB and 10dB fixed values, our coaxial attenuators provide signal attenuation and VSWR matching for applications such as automotive radar, emerging 5G bands and wireless backhaul. High quality 1mm coaxial connectors ensure repeatable and long-lasting performance, offered in F/F, M/F, and M/M options to minimize crucial interconnect losses in your setup. Each unit is serialized and shipped with production test data as our commitment to you to provide the highest quality RF, microwave, and millimeter-wave products in the industry.

ATN06-00110 Insertion Loss

ATN10-00110 Insertion Loss

With an amazing 9:1 bandwidth ratio, the MQS-0218SM qudarature splitter/combiner is the ultimate solution for broadband applications include single sideband upconverters, image rejection downconverters, IQ modulators, balanced amplifiers, and microwave correlators. The MQS-0218SM is the surface mount optimized version of our popular MQS-0218CH, allowing for easy assembly and use. This splitter provides exceptional amplitude and phase balance over a wide 2 to 18 GHz bandwidth, with 15 dB isolation between the output ports. Passive GaAs MMIC technology allows production of smaller constructions that replace larger form factor circuit board constructions, with the reliability and repeatability our customers have come to expect from Marki products. Also just released is the MQS-0518SM, a 5 to 18GHz quadrature splitter/combiner. Both parts are available in 4mm QFN, and complement our large selection of MMIC quad splitters and quad hybrids from 2 to 42 GHz.

MQS-0218SM

MQS-0518SM

The new mmwave AQA-2156 active quadrupler will frequency extend your synthesizer up to 56GHz with high output power and superior harmonic suppression. Requiring only 0dBm input power and an input frequency range of 5.25 to 14GHz, this power-efficient MMIC multiplier provides greater than +20dBm 4F output power over most of the 21 to 56GHz output range, making this an ideal driver for Marki Microwave H and S diode mixers. AQA-2156 is a RoHS connectorized module designed for lab use, test and measurement, and end applications such as SATCOM, radar and 5G.

Low Phase Noise 2-30GHz SMT Amplifiers Optimized for Marki Mixers

Concerned about additive phase noise? Looking to eliminate negative supply rails and power sequencing? Is board space a premium? Introducing Marki Microwave’s first low phase noise, positive-bias, no bias tee required, surface mount LO driver amplifiers featuring a wide 2 to 30GHz bandwidth! The  APM-6848SM, a dual-stage design with 22dB of small-signal gain, provides a +20dBm typical saturated output power with an input power of only 0 to 5dBm. This is ideal for driving our L, H, and S-diode mixers directly from your VCO or synthesizer output. Also available is our new APM-6849SM, a single-stage design with 11dB of gain and +21dBm saturated output, and an impressive -170dBc/Hz phase noise at 10kHz offset. Careful consideration was made to power consumption, with APM-6848SM drawing only 47mA at 5V and APM-6849SM drawing just 23mA, making these some of the most power efficient wideband low phase noise amplifiers on the market. Both amplifiers are available in surface-mount QFN packages and connectorized evaluation modules.

As with our industry-leading double and triple balanced MMIC mixers, in L, H, and S-diode options, each providing higher P1dB and IP3 with a corresponding higher LO drive for the ultimate in design flexibility. No matter which version you select you will get exceptional spurious performance, high isolations and image rejection, and wide multi-octave bandwidths on all ports. Today we’re introducing three new IQ mixers, each a variant of an existing product. The MMIQ-0218H offers an impressive 2 to 18 GHz RF/LO, DC to 3 GHz IF, IIP3 of +25dBm, and is also available in L-diode. The MMIQ-1040S has a 10 to 40 GHz bandwidth, DC to 12GHz IF, IIP3 of +27dBm, and is also offered in L-diode. The MMIQ-1865S is an 18 to 65 GHz mmwave IQ mixer with a wide DC to 23 GHz IF, IIP3 of +27dBm, and available in L-diode and H-diode as well. Each of these IQ mixers features high LO-RF isolation, such as the MMIQ-1865S with 50 dB isolation, enabling the use of a higher LO drive without penalty due to feedthrough. Each of these IQ mixers are available as a wire-bondable bare die and connectorized module.

MMIQ-0218H:

MMIQ-0218H:

Phase noise is a critical concern in applications ranging from sensitive military radars to state-of-the-art wireless chipset testing to ultra low-noise frequency source design. For this reason, Marki Microwave is proud to introduce the APM-6848, our first low phase noise amplifier! Featuring positive-only bias and requiring no external bias tees or power sequencing, this GaAs HBT MMIC LO driver will produce more gain and more output power up to higher frequencies than any competing GaAs HBT amplifiers on the market.  The APM-6848 is unique among wideband GaAs HBT amplifiers in that it can provide a +21dBm typical saturated output power with an input power of only 0 to 5dBm.  This is ideal for driving our L, H, and S-diode mixers in a single stage from your VCO or synthesizer output. Careful consideration was made to power consumption, drawing only 47mA and providing 23dB of gain, making it one of the most power efficient wideband low phase noise amplifiers on the market. The APM-6848 is available today in bare die and connectorized module, and the surface-mount version is coming soon (contact us to learn more).

The DLM-10SM is a tunable, dual channel GaAs Schottky diode signal limiter featuring excellent IP3, insertion loss, and return loss. The limiting level is adjustable with an off-chip bias network, and the two channels can be used for differential or single-ended signals. Typical input P1dB is +10dBm with an operating range of DC to 10 GHz. The DLM-10SM is available in a lead-free, RoHS compliant 3×3 mm QFN surface mount package.

At Marki Microwave, we’re known for pushing the limits on instantaneous bandwidth and it doesn’t get much harder than doing this in an IQ mixer. Building on the accomplishment of the 2 to 18 GHz quadrature splitter MQS-0218, the MMIQ-0218L has an impressive 2 to 18 GHz RF/LO bandwidth and DC to 3 GHz IF. To achieve this 9:1 BW ratio required the expert design and integration of ultrawide mixers, quad hybrids, and power dividers. This MMIC IQ mixer provides +5dBm Input P1dB, 27 dB of image rejection, and 58 dB of L-R Isolation with an LO of +17dBm. Our MMIQ series mixers are used in a variety of applications to provide vector modulation, band shifting, and up/downconversion for radar, EW, test & measurement, and quantum computing. The MMIQ-0218L is available today in bare die and connectorized module.

The DLM-10SM is a tunable, dual channel GaAs Schottky diode signal limiter featuring excellent IP3, insertion loss, and return loss. The limiting level is adjustable with an off-chip bias network, and the two channels can be used for differential or single-ended signals. Typical input P1dB is +10dBm with an operating range of DC to 10 GHz. The DLM-10SM is available in a lead-free, RoHS compliant 3×3 mm QFN surface mount package.

Our new broadband ADM3-0022PA power amplifier produces 1 Watt of saturated output power from a +0 dBm input thanks to a 3-stage design providing 35 dB of small signal gain. Featuring built-in gain equalization, the ADM3-0022PA offers exceptionally flat frequency response from DC to 22 GHz in both linear and saturated modes. It’s an ideal LO driver amplifier for Marki T3 and MT3 high linearity mixers. The ADM3-0022PA is available with or without a heatsink and is intended for lab use.

High Linearity Triple-Balanced MMIC Mixer for S, C, X-Band

The MT3L-0113H is a lower IF variant of our popular  MT3H-0113H triple-balanced MMIC mixer. Greater than +30dBm IIP3 can be achieved when paired with our ADM series of square-wave generating LO driver amplifiers. RF and LO cover 1.5 to 13 GHz, and the IF is 0.25 to 5 GHz.  WIth port isolations greater than 40 dB and spur suppression over 60 dBc, this latest entry to the T3 product family is ideal for high performance radar, radio and test applications. MT3L-0113H is available now as bare die or connectorized module. Contact us for surface-mount QFN availability.

MM1-0832HSM

High Gain, High Power 20 to 55 GHz Millimeter Wave Amplifier Module

The AMM-6702UC is a connectorized millimeter wave amplifier with an ultrawide 20 to 55 GHz bandwidth, over 25 dB gain, and up to +23 dBm saturated output power with only a 0dBm input. This GaAs MMIC amp features a power-efficient design, consuming a mere 570mW. High linearity broadband mmwave mixers such as our MM1-1850S require high power broadband LO driver amplifiers, but these amps were largely absent from the market at frequencies above 40 GHz – until now. The AMM-6702UC‘s unmatched combination of bandwidth, power and efficiency make this an ideal LO driver amps for SATCOM, radar, 5G, and point-to-point applications.

DC to 50 GHz Gain Slope Equalizer for mmWave and 5G

Marki Microwave introduces an ultra-efficient broadband MMIC multiplier available in two unique drive level options. The MMD-2060L/H doubler spans an impressive 20 to 60 GHz of output bandwidth, features very low conversion loss and provides superior suppression with a typical 37dBc fundamental and 40dBc 3F suppression value. Based on your power requirements select either the MMD-2060L, which provides -6 dBm output power with a nominal +5dBm drive, or the MMD-2060H, which provides 0 dBm with +11dBm input. Ideal for a wide range of SATCOM, radar, 5G, and point-to-point applications, the MMD-2060L/H is available now in bare die or connectorized modules.

MMD-2060H

MQS-0218: Excellent Phase Balance from 2-18 GHz

MMIQ-0626HSM

Introducing the first triple-balanced surface mount MMIC mixer that covers X/Ku/K bands in a small QFN package. The high linearity MM2-0530HSM features massive overlapping bands with RF/LO from 5 to 30 GHz and IF from 2 to 20 GHz. The unique design provides IP3 of +28dBm and optimal spurious suppression, especially for difficult IF harmonics. Port-to-port isolations are an exceptional 35dB typical.

For lower LO drive applications we offer the MM2-0530LSM.  Both are available in 5 x 5 mm QFN, on an eval board, as bare die, or in a high performance connectorized module.

Our popular MMIC equalizer die are now offered in surface-mount 3mm x 3mm QFN packages. Optimized for excellent return loss over the entire band, the MEQ series equalizers provide consistent unit-to-unit performance in a small low-cost form factor. The MEQX-7ASM family is available in four configurations and provide positive slope from DC to 7GHz with DC attenuation options between 3 and 12dB. Coming soon are the DC-14GHz MEQX-14ASM and DC-20GHz MEQX-20ASM families of equalizers. S-parameters are available on our website.

Marki Microwave is proud to launch their first series of GaAs MMIC quadrature hybrid couplers spanning 9 GHz to 42 GHz. Each 90 degree hybrid coupler was optimized for high isolation and offers exceptional amplitude and phase balance. Three products are available at launch: MQH-0920 (9 to 20 GHz), MQH-1434 (14 to 34 GHz), and MQH-1842 (18 to 42 GHz). Applications include single sideband upconverters, image rejection downconverters, IQ modulators, balanced amplifiers, microwave correlators, and microwave Butler matrices. All MQH’s are available as wire-bondable die.

Marki Microwave continues to be the leader in broadband balun design with their latest multi-octave GaAs MMIC balun. The MBAL-1440 provides outstanding amplitude and phase balance over a range of 14 to 40 GHz.  Offering high isolation and common-mode rejection, this balun is ideal for high-speed track-and-hold amplifiers for ADCs, balanced amplifiers, and signal integrity applications. MBAL-1440 is available as wire-bondable die.

Marki Microwave is introducing the latest addition to our world-leading GaAs MMIC IQ Mixer family with the MMIQ-4067LU module. This V-band mixer spans 40 to 67 GHz with an IF bandwidth of DC to 20 GHz. Due to the excellent phase and amplitude balance of its on-chip LO quadrature hybrid, the MMIQ-4067LU rovides an exceptional 33dB of LO-RF isolation and 35dB of image rejection.  It is available today in a connectorized module.

At Marki Microwave our mission is to empower engineers to shatter performance barriers. True to that mission, we offer a wide selection of high linearity, wide bandwidth GaAs MMIC IQ mixers for applications in image reject mixing, vector amplitude modulation, band shifting, and IQ modulation/demodulation. Our RF, LO, and IF bandwidths are the widest in the industry, enabling engineers to push the boundaries of what is possible. Just as with our double and triple balanced mixers, we typically offer our IQ mixers in two diode options to allow customization for either low LO drive or high linearity applications. When performance matters, there’s only one name in mixers – Marki Microwave.

Model	RF/LO [GHz]	IF [GHz]	LO Drive [dBm]	Image Reject [dB]	Isolations L-R [dB]
MMIQ-0205HSM	1.75-5	DC-2	+14 to +20	32	61
MMIQ-0205SSM	1.75-5	DC-2	+19.5 to +24	29	56
MMIQ-0520L	5-20	DC-6	+3 to +13	35	46
MMIQ-0520LSM	5-20	DC-6	+3 to +13	35	46
MMIQ-0520H	5-20	DC-6	+13 to +23	35	46
MMIQ-0626L	6-26	DC-6	+3 to +13	35	41
MMIQ-0626LSM	6-26	DC-6	+11 to +20	35	39
MMIQ-0626H	6-26	DC-6	+13 to +23	35	41
MMIQ-1040L	10-40	DC-12	+3 to +13	25	47
MMIQ-1037H	10-37	DC-12	+13 to +23	25	47
MMIQ-4067L	40-67	DC-20	+11 to +15	35	33

The MFB-5350 bandpass filter is the latest addition to Marki Microwave’s growing catalog of in-stock MMIC filters. This V-band filter has a passband of 37 to 70 GHz with a low 1.2 dB insertion loss and excellent return loss. Our GaAs MMIC process ensures highly repeatable performance and scalability for high volume applications as pre-select, image, or LO cleanup filters. The MFB-5350 is available today in wire-bondable die.

Marki is proud to introduce surface-mount versions of our low-barrier diode MMIC IQ mixers. The MMIQ-0520LSM and MMIQ-0626LSM, with wide RF/LO bandwidths of 5 to 20 GHz and 6 to 26 GHz respectively, provide exceptional LO-RF isolation and spurious suppression. When used as an image reject or a single-sideband mixer (with an external IF hybrid) these IQ mixers provide excellent image/sideband suppression. A low +3dBm drive level is all that’s required. MMIQ-0520LSM & MMIQ-0626LSM are available in 4×4 mm QFN or connectorized evaluation module.

Marki Microwave is introducing 3 new passive GaAs MMIC mixers, each covering RF/LO from 2 to 12 GHz and IF DC to 3 GHz. These broadband mixers are of similar design offering exceptional port-to-port isolations with LO-IF approaching 50dBc.

What differentiates each mixer is the LO drive required and the resultant linearity. The MM1-0212L will operate with as low as +1dBm LO drive and provide IIP3 up to +14dBm at nominal drive levels of +9dBm. The MM1-0212H has a nominal LO drive of +15dBm with IIP3 of +23dBm. For the most demanding applications we offer the MM1-0212S with nominal LO drive of +20dBm (up to +23dBm) and an outstanding IIP3 of +29dBm.