ABSTRACT

The communication and radar industries in microwave and mm wave frequencies are continuously growing. Radio frequency (RF) modules such as front end, filters, power amplifiers, antennas, passive components, and limiters are important modules in radar and communication links (see Refs. [1-9]). Microwave and mm wave technologies include

• Microwave integrated circuits (MICs) • Monolithic microwave integrated circuits (MMICs) • Micro-electro-mechanical systems (MEMSs) • Low-temperature co-fired ceramics (LTCCs)

The electrical performance of the modules determines if the system will meet the required specifications. Moreover, in several cases the module’s performance limits the system performance. Minimization of the size and weight of the RF modules is achieved by employing MMIC and MIC technology. However, integration of MIC and MMIC components and modules raises several technical challenges. Design parameters that may be neglected at low frequencies cannot be ignored in the design of wideband integrated RF modules. Powerful RF design software, such as ADS and HFSS, is required to achieve accurate design of RF modules in mm wave frequencies. Accurate design of mm wave RF modules is crucial. It is an impossible mission to tune mm wave RF modules in the fabrication process.