ARTICLES

Design of a Novel Quad-band Microstrip BPF Using Quarter-wavelength Stepped-impedance Resonators

In this article, a new quad-band microstrip bandpass filter (BPF) is proposed. The BPF is composed of resonators whose first four resonant frequencies can be tuned to the desired passbands. Each resonator is formed by combining two unequal-size stepped...
Due to the increasing competition in the global wireless communication markets, many wireless terminals, such as mobile phones, personal dispatching assistants (PDA) and laptop computers, are being constructed to integrate more than one communication standard into the same apparatus. This allows the end-users to access different systems that provide...
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