Abstract
In this paper, a new λ/4 bias transmission line that is added dumbbell-shaped defect ground structure (DGS) on ground plane of the conventional λ/4 bias transmission line is proposed. This DGS λ/4 bias transmission line maintains high impedance, but physical width is wider and length is shorter than that of the conventional bias line. If the proposed bias line is attached on signal transmission line, this bias line can reduces the 3rd harmonic signal as well as the 2nd harmonic signal. When the proposed bias line is adopted in power amplifier on IMT-2000 basestation transmitting band, the 3rd harmonic signal is reduced about 26.5dB than the conventional structure.
| Original language | English |
|---|---|
| Pages (from-to) | 1161-1164 |
| Number of pages | 4 |
| Journal | IEEE MTT-S International Microwave Symposium Digest |
| Volume | 2 |
| State | Published - 2002 |
| Event | IEEE MSS-S International Microwave Symposium Digest - Seattle, WA, United States Duration: 2002.06.2 → 2002.06.7 |
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