International Journal of Antennas and Propagation

Research Article

Efficient Narrowband Direction of Arrival Estimation Based on a Combination of Uniform Linear/Shirvani-Akbari Arrays

Table 1

The effect of dissimilar elements in steering vector for different proposed arrays.
Proposed arrayThe effect of dissimilar elements 1 and 2 on steering vector
12
PA1 𝑒 + 𝑗 𝑘 𝑑 c o s 𝜃 𝑚 𝑒 − 𝑗 𝑘 𝑑 c o s 𝜃 𝑚
PA2 𝑒 − 𝑗 ( ( 𝑁 − 3 ) / 2 ) 𝑘 𝑑 s i n 𝜃 𝑚 × 𝑒 + 𝑗 𝑘 𝑑 c o s 𝜃 𝑚 𝑒 + 𝑗 ( ( 𝑁 − 3 ) / 2 ) 𝑘 𝑑 s i n 𝜃 𝑚 × 𝑒 + 𝑗 𝑘 𝑑 c o s 𝜃 𝑚
PA3 𝑒 − 𝑗 ( ( 𝑁 − 3 ) / 2 ) 𝑘 𝑑 s i n 𝜃 𝑚 × 𝑒 + 𝑗 𝑘 𝑑 c o s 𝜃 𝑚 𝑒 + 𝑗 ( ( 𝑁 − 3 ) / 2 ) 𝑘 𝑑 s i n 𝜃 𝑚 × 𝑒 − 𝑗 𝑘 𝑑 c o s 𝜃 𝑚
PA4 𝑒 − 𝑗 ( ( 𝑁 − 3 ) / 2 ) 𝑘 𝑑 s i n 𝜃 𝑚 × 𝑒 + 𝑗 𝑘 𝑑 c o s 𝜃 𝑚 𝑒 − 𝑗 ( ( 𝑁 − 3 ) / 2 ) 𝑘 𝑑 s i n 𝜃 𝑚 × 𝑒 − 𝑗 𝑘 𝑑 c o s 𝜃 𝑚
PA5 𝑒 + 𝑗 𝑘 𝑑 c o s 𝜃 𝑚 𝑒 − 𝑗 𝑘 𝑑 s i n 𝜃 𝑚 × 𝑒 + 𝑗 𝑘 𝑑 c o s 𝜃 𝑚