Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"power divider"”.
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Design and Implementation of Radio Frequency Power Feeding Networks for Antenna Array Applications: Simulation and Measurements of Multiport, Equal and Unequal, Fixed and Reconfigurable Radio Frequency Power Feeding Networks for Narrow and Ultra-Wideband Applications
Power dividers are vital components and widely used in radio technology, such as antenna arrays, power amplifiers, multiplexers and mixers. A good example is the well-known Wilkinson power divider with its distinctive feeding network characteristics. A comprehensive review indicated that limited …
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Synthesis of coupled resonator circuits with multiple outputs using coupling matrix optimization
… resonator circuits. Three-port coupled resonator power dividers and diplexers are demonstrated in particular. The design approach is based on coupling matrix optimization, and it allows synthesis of coupled resonator power dividers with arbitrary power division, and diplexers with contiguous and …
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Ultrawideband and Multi-state Reconfigurable Antennas with Sum and Difference Radiation Patterns
… replacement for couplers, an out-of-phase power divider with unequal power division is also proposed. In the second part of this thesis, the pattern diversity function is combined with multistate frequency-reconfigurable filtering functions in a series of novel designs. In the first …
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Design and Reliability of mm-Wave Circuits In Silicon-Germanium
… SPDT switch and an 18-47 GHz Wilkinson Power Divider-Combiner (WPDC). Optimal design techniques are utilized in these circuit designs to overcome the limitations of both Front End of the Line (FEOL: active devices) and Back End of the Line (BEOL: metal stack-up) in a commercial SiGe …
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INVESTIGATION OF SMALL ANTENNAS FOR PERSONAL HANDY PHONE USE
… of antenna array for PHP use. A 2-way hybrid power divider with in-phase outputs is used for antenna feeding. It has the same interesting features with MTLA for PHP use at 900 MHz and 1.9 GHz and even more flexible. The gain is higher than a quarter-wavelength and half-wavelength monopole …
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The design of a two-element radio interferometer using satellite TV equipment
… a result of the source's geometric time delay. A power detector was also designed since the adding interferometer architecture was chosen. This power detector included the Analog Devices LT 5534 power detector integrated circuit (IC) and a Teensy 3.6 microcontroller. The calibrated power detector …
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Single-band and Dual-band Beam Switching Systems and Offset-fed Beam Scanning Reflectarray
The reflectarray has been considered as a suitable candidate to replace the conventional parabolic reflectors because of its high-gain, low profile, and beam reconfiguration capability. Beam scanning capability and multi-band operation of the microstrip reflectarray have been main research topics …
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CMOS Power Device Modeling and Amplifier Circuits
A power amplifier (PA) is a key part of the RF front-end in transmitters for a local broadband network. Today, commercial PAs are made of III-V HEMT and HBT technology with excellent results. An integrated system-on-chip power amplifier circuit using CMOS technology for cost-effective and …