A1. a) Section A A low voltage signal carried by a single mode cable has been corrupted by interference from high voltage cables, which are all close together in a cable tray. You are to design a notch filter, according to the structure shown in Figure A1a, and the specification depicted in the frequency template of Figure A1b. Filter tables are provided in Exhibit A1a and Exhibit A1b for Low and High pass Butterworth filter designs. Your design must satisfy the filter specification as depicted in the template as shown (Figure A1b). In order to deduce the order of the filter, you may use the following equations as a starting point: 1 T(f)|LP 2n T(f) HP: + (F.) Draw the full circuit design, labelling all components. 1 2n - (FC) n 1+ (16 marks)