Projects per year
Abstract
This paper presents a 9:4 step down impedance transformation in glass integrated passive device (GIPD) technology. Unlike traditional Ruthroff balanced-to-unbalanced (balun) having a 1:4 step-up impedance transformation ratio, the proposed 9:4 step-down balun is realized by cascading a 9:1 unto-un transmission line transformer (TLT) and a 1:4 TLT balun. Since the balanced port exhibits low impedance, the proposed step-down balun is suitable for the power combining and impedance transformation for high power amplifier design. Particularly, a center tap with bypass capacitor at the middle of balanced line is intentionally designed to use as DC biasing for the power transistors. The minimal insertion loss is 0.86 dB at 5.3 GHz and the 1-dB bandwidth is from 4.2 GHz to 7 GHz, which is correspondent to 51.6% of fractional bandwidth.
Original language | English |
---|---|
Title of host publication | 2018 IEEE CPMT Symposium Japan, ICSJ 2018 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 193-196 |
Number of pages | 4 |
ISBN (Electronic) | 9781538654422 |
DOIs | |
State | Published - 2 Jul 2018 |
Event | 2018 IEEE CPMT Symposium Japan, ICSJ 2018 - Kyoto, Japan Duration: 19 Nov 2018 → 21 Nov 2018 |
Publication series
Name | 2018 IEEE CPMT Symposium Japan, ICSJ 2018 |
---|
Conference
Conference | 2018 IEEE CPMT Symposium Japan, ICSJ 2018 |
---|---|
Country/Territory | Japan |
City | Kyoto |
Period | 19/11/18 → 21/11/18 |
Keywords
- 9:4 step down impedance transformation
- Ruthroff Balun
- glass integrated passive device (GIPD)
Fingerprint
Dive into the research topics of 'Design of 9:4 step-down impedance transformation ruthroff balun with center tap in GIPD technology'. Together they form a unique fingerprint.Projects
- 1 Finished
-
Researches on Miniature X-Band Pulse Radar Transmitter in Gallium Nitride (Gan) Based Technology(2/3)
Chiou, H.-K. (PI)
1/08/18 → 31/07/19
Project: Research