The Bohr radius for a class \({\mathcal {G}}\) consisting of analytic functions \(f(z)=\sum _{n=0}^{\infty }a_nz^n\) in unit disc \({\mathbb {D}}=\{z\in {\mathbb {C}}:|z|<1\}\) is the largest \(r^*\) such that every function f in the class \({\mathcal {G}}\) satisfies the inequality

for all \(|z|=r \le r^*\), where d is the Euclidean distance. In this paper, our aim is to determine the Bohr radius for the classes of analytic functions f satisfying differential subordination relations \(zf'(z)/f(z) \prec h(z)\) and \(f(z)+\beta z f'(z)+\gamma z^2 f''(z)\prec h(z)\), where h is the Janowski function. Analogous results are obtained for the classes of \(\alpha \)-convex functions and typically real functions, respectively. All obtained results are sharp.

玻尔半径一类\（{\ mathcal {G}} \）组成的解析函数\（F（Z）= \总和_ {N = 0} ^ {\ infty} a_nz ^ N \）在单位圆\ （{\ mathbb {D}} = \ {z \ in {\ mathbb {C}}：| z | <1 \} \）是最大的\（r ^ * \），因此类\中的每个函数f （{\ mathcal {G}} \）满足不等式

对于所有\（| z | = r \ le r ^ * \），其中d是欧几里得距离。在本文中，我们的目的是确定满足微分从属关系\（zf'（z）/ f（z）\ prec h（z）\）和\（f（z）的解析函数f类的玻尔半径+ \ beta z f'（z）+ \ gamma z ^ 2 f''（z）\ prec h（z）\），其中h是Janowski函数。分别对于\（\ alpha \）-凸函数类和典型的实函数类获得了相似的结果。所有获得的结果都是清晰的。