The CMX90G701 and CMX90G702 Positive Gain Slope Amplifiers are available from CML Microcircuits. These general-purpose gain blocks were created using the company’s cutting-edge SRF MMIC design capability, and they are perfect for a variety of wireless applications operating in the 6-18GHz frequency range, including microwave backhaul, satellite communications, radar, 5G fixed wireless access, and VSAT. By making up for system losses across their working frequency range, they can also be used to eliminate passive equalisers. In order to achieve the best possible balance of high linearity, low noise, and low DC power consumption, the devices are constructed using the GaAs pHEMT process technology. The CMX90G702 features a +2dB gain-slope for applications requiring a higher gain-slope compensation while the CMX90G701 delivers a +1dB positive gain-slope. These gadgets have a low noise figure of 3dB, a P1dB output rating of +10dBm, and a small signal range of 9.5-11.5dB.
Gain blocks are made for simplicity of use, with a high level of integration, lowering the number of external components, and reduced PCB footprints, just like other S-RF family devices. Due to an on-board active bias circuit, the devices operate over a wide supply voltage range of 2V to 5V with a typical current of 22mA, eliminating the need for passive equalisation circuits in the system design. The devices are “plug-in,” cascadable blocks. Additionally, each device’s RF ports are intrinsically matched to a 50-Ohm impedance, facilitating quick product development cycles, particularly for applications targeting the mass market. “The CMX90G701 and CMX90G702 Low Power Gain Blocks go up the RF spectrum to 6-18GHz in continuation of our past release of positive gain-slope amplifiers aimed at the sub-7GHz markets. These products, which expand our line of positive gain-slope amplifiers, make use of CML’s cutting-edge SRF design capabilities. These products meet the expanding market demand for high-performing mmWave products used in a variety of applications, such as microwave backhaul, radar, and satellite communications “the product manager for RF and mmWave, Arwyn Roberts, stated. “The low-power amplifier lineup now includes the CMX90G701 and CMX90G702, complementing the CMX90G301 and CMX90G302 models. A variety of PAs, LNAs, Gain Blocks, and FEMs will be among the high-performance GaAs and GaN technologies used in upcoming SRF family products.”
