| 摘要 |
<p>In an electronic circuit for forming an antenna pattern the antenna signals having the required phase shift are generated by means of two phase locked loops which have a common reference signal. A control current which is added at the output node of the charge pump (26) and/or (27) is used to control the phase shift of the antenna signals. This allows the implementation of the phase shift operation in the analogue domain, which decreases the cost of a corresponding consumer device, such as a car-radio or a mobile communication system.</p> |
