发明名称 |
TUNABLE INTEGRATED RF FILTER HAVING SWITCHED FIELD EFFECT CAPACITORS |
摘要 |
A filter (3) is described, which filter is provided with field effect (FET) capacitors (M1-32; M'1-32) arranged for controlling their respective capacity values, each such FET capacitor (M1-32; M'1-32) having a source (S) and a drain (D). The source (S) and the drain (D) of each FET capacitor (M1-32; M'1-32) are coupled to one another. The filter acting as an impedance transformer is a passive low power consuming and tunable filter, such as for a radio frequency (RF) receiver. It occupies only a very small area, while integrated on chip.
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申请公布号 |
WO02060055(A1) |
申请公布日期 |
2002.08.01 |
申请号 |
WO2001IB02661 |
申请日期 |
2001.12.19 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
LEENAERTS, DOMINICUS, M., W.,;DIJKMANS, EISE, C. |
分类号 |
H03H11/04;H03H11/12;(IPC1-7):H03H11/12 |
主分类号 |
H03H11/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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