Abstract
Switched capacitors are here investigated for use in reconfigurable matching networks, particularly for DVB-H frequencies. A $0.13$ $mu$m CMOS circuit is evaluated through both simulations and measurements. Source grounded NMOS transistors are used to switch high quality metal capacitors located above metal layer 8. The quality factor and tuning range depend on frequency, switch voltage, capacitor size, and transistor width. There is a clear trade-off between quality factor and tuning range, and measurements show quality factors above 50, 100, and 150 at tuning ranges of 3.9, 2.4, and 1.6, respectively. A reconfigurable matching network with the switched capacitors has been realized using external inductors and the measured matching domain for the DVB-H frequency band is shown. The total loss of the network is 1.0 dB, a result of the high quality switched capacitors.
| Original language | English |
|---|---|
| Title of host publication | [Host publication title missing] |
| Publisher | SSoCC (Swedish System on Chip Conference) |
| Number of pages | 4 |
| Publication status | Published - 2007 |
| Event | Swedish System-on-Chip Conference 2007 (SSoCC’07) - Fiskebäckskil, Gullmarsstrand, Fiskebäckskil, Sweden Duration: 2007 May 14 → 2007 May 15 |
Conference
| Conference | Swedish System-on-Chip Conference 2007 (SSoCC’07) |
|---|---|
| Country/Territory | Sweden |
| City | Gullmarsstrand, Fiskebäckskil |
| Period | 2007/05/14 → 2007/05/15 |
Subject classification (UKÄ)
- Electrical Engineering, Electronic Engineering, Information Engineering
Free keywords
- DVB-H
- CMOS
- matching
- switched capacitor
- MEMS