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Quot;the design of a compact, wide spurious-suppression bandwidth bandpass filter using stepped impedance resonators"
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Doiron, Terence Laskar, Joy U-Yen, Kongpop Wollack, Edward J. Papapolymerou, John |
| Copyright Year | 2005 |
| Description | We propose an analytical design for a microstrip broadband spurious-suppression filter. The proposed design uses every section of the transmission lines as both a coupling and a spurious suppression element, which creates a very compact, planar filter. While a traditional filter length is greater than the multiple of the quarter wavelength at the center passband frequency (lambda(sub g)/4), the proposed filter length is less than (order n(Ssup th) + l)center dot lambda(sub g)/8. The filter s spurious response and physical dimension are controlled by the step impedance ratio (R) between two transmission line sections as a lambda(sub g)/4 resonator. The experimental result shows that, with R of 0.2, the out-of-band attenuation is greater than 40 dB; and the first spurious mode is shifted to more than 5 times the fundamental frequency. Moreover, it is the most compact planar filter design to date. The results also indicate a low in-band insertion loss. |
| File Size | 267237 |
| Page Count | 3 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050180325 |
| Archival Resource Key | ark:/13960/t8ff8r37c |
| Language | English |
| Publisher Date | 2005-02-04 |
| Access Restriction | Open |
| Subject Keyword | Numerical Analysis Transmission Lines Broadband Insertion Loss Bandwidth Bandpass Filters Frequencies Resonators Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
