Presentation on theme: "Chapter 4. Antenna Synthesis"— Presentation transcript:
1 Chapter 4. Antenna Synthesis 4.1 Basic principle for antenna synthesis4.2 Line source synthesis (Fourier transform, woodward-lanson sampling)4.3 Linear array synthesis (Fourier series, woodward-lanson sampling)4.4 Low sidelobe synthesis (Dolph-Chebyshev, Taylor)
2 Synthesis Problems Given affordable SLL, No. of elements, how to synthesize?Ideal case: narrow beam, constant side-lobe envelopeApproaches: Dolph-Chebyshev, Taylor Line Source….Secret behind: to synthesize a polynomial like pattern….
3 Dolph-Chebyshev Linear Array The Chebyshev polynomials:Property used: