Typical, I found the book title just after I'd pressed send. It's a bit pricey new, so I'd try and borrow a copy, via your local library (remember those).
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"Lumped Element Quadrature Hybrids" by David Andrews
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Regards,
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Martin
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On Tue, Apr 22, 2025 at 09:15 AM, Martin - Southwest UK wrote:
There is also an excellent book devoted to the subject,
