This paper presents a microstrip antenna (MSA) array on a broad wall of a rectangular waveguide for 45-degree inclined linear polarization. A two-element MSA array connected by a microstrip line at ...

For example, 11 is a prime number since 11 dots form only rectangular arrays of sizes 1 by 11 and 11 by 1. Conversely, 12 is not prime since you can use 12 dots to make an array of 3 by 4 dots ...