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A new linear tapered diplexing power distributed amplifier based on composite right left handed transmission line has been made. According to the input frequency, the amplified signal is directed to one of the two output ports automatically. The linearity requirement of UMTS and WLAN can be satisfied until different power level, respectively. Furthermore, this circuit is capable of simultaneous amplification...
A tapered distributed power amplifier is designed for linear mobile phone power application, which covers the 3G mobile phone bandwidth from 800 MHz-2 GHz completely. It illustrates the opportunity of multiple power modes capability for power added efficiency (PAE) enhancement. Each power mode fulfills the WCDMA linearity specification up to a specific maximal output power.
This paper deals with the characterization of LTCC substrates up to 100 GHz. Planar transmission lines and resonators are used for characterizing the substrates. Measurement results for the relative permittivity obtained from the investigated structures are presented.
This paper presents the concept of a triplexer for CELL-, GPS- and PCS-signals which is highly integrated by using low-temperature co-fired ceramics (LTCC) technology. The proposed module integrates a surface acoustic-wave filter for band selection and two fully integrated diplexer circuits into one LTCC package. The intention is to increase the integration level in comparison to current triplexer...
There is a continuous trend to modularization since information, communication, data processing and automotive industries ask for integration of active and passive devices and further miniaturization. This paper shows how EPCOS, one of the leading component manufacturers is serving the needs of the industries by making use of their advanced LTCC (low temperature cofired ceramics) technology, extensive...
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