Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 356 - 372 |
| Number of pages | 17 |
| Journal | International Journal of RF and Microwave Computer-Aided Engineering |
| Volume | 14 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2004 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- RF MEMS
- reconfigurablöe networks
- impedance tuner
- matching network
- loaded-line
- phased arrays
- load-pull
- noise parameters
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A 4–18‐GHz reconfigurable RF MEMS matching network for power amplifier applications. / Vähä-Heikkilä, Tauno (Corresponding Author); Rebeiz, G.M.
In: International Journal of RF and Microwave Computer-Aided Engineering, Vol. 14, No. 4, 2004, p. 356 - 372.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - A 4–18‐GHz reconfigurable RF MEMS matching network for power amplifier applications
AU - Vähä-Heikkilä, Tauno
AU - Rebeiz, G.M.
PY - 2004
Y1 - 2004
N2 - We have developed a novel reconfigurable matching network based on the loaded‐line technique. The network is composed of N‐switched capacitors (N = 4–8) with a capacitance ratio of 4–5:1 and is suitable for power amplifiers at 4–18 GHz, or as an impedance tuner for noise parameter and load‐pull measurements at 10–28 GHz. The networks are very small, and offer better performance than double or triple stub matching networks. Extensive loss analysis indicates that the 8‐element network has a loss of 0.5 dB at 4–12 GHz, and less than 1.5 dB at 18 GHz, even when matching a 10Ω output impedance to a 50Ω load. As expected, the 4‐element matching network has about half the loss of the 8‐element network, but with much less impedance coverage. Both networks were simulated and measured in high VSWR conditions and can handle at least 500 mW of RF power at 4–18 GHz. The application areas are in phased array antennas, reconfigurable power amplifiers, and wideband noise‐parameter and load‐pull measurement systems
AB - We have developed a novel reconfigurable matching network based on the loaded‐line technique. The network is composed of N‐switched capacitors (N = 4–8) with a capacitance ratio of 4–5:1 and is suitable for power amplifiers at 4–18 GHz, or as an impedance tuner for noise parameter and load‐pull measurements at 10–28 GHz. The networks are very small, and offer better performance than double or triple stub matching networks. Extensive loss analysis indicates that the 8‐element network has a loss of 0.5 dB at 4–12 GHz, and less than 1.5 dB at 18 GHz, even when matching a 10Ω output impedance to a 50Ω load. As expected, the 4‐element matching network has about half the loss of the 8‐element network, but with much less impedance coverage. Both networks were simulated and measured in high VSWR conditions and can handle at least 500 mW of RF power at 4–18 GHz. The application areas are in phased array antennas, reconfigurable power amplifiers, and wideband noise‐parameter and load‐pull measurement systems
KW - RF MEMS
KW - reconfigurablöe networks
KW - impedance tuner
KW - matching network
KW - loaded-line
KW - phased arrays
KW - load-pull
KW - noise parameters
U2 - 10.1002/mmce.20021
DO - 10.1002/mmce.20021
M3 - Article
VL - 14
SP - 356
EP - 372
JO - International Journal of RF and Microwave Computer-Aided Engineering
JF - International Journal of RF and Microwave Computer-Aided Engineering
SN - 1096-4290
IS - 4
ER -