diff --git a/docs/zero/zero3/accessories/zero3w-antenna.md b/docs/zero/zero3/accessories/zero3w-antenna.md
index 1b65c0db9..558652576 100644
--- a/docs/zero/zero3/accessories/zero3w-antenna.md
+++ b/docs/zero/zero3/accessories/zero3w-antenna.md
@@ -11,6 +11,14 @@ Radxa ZERO 3W 板载 Radxa D8 / AP6212 WiFi&BT 模块，有一个板载天线和
 - **1: 板载天线**
 - **2: 外接天线**
 
+## 外接天线接口规格
+
+| 项目 | 规格 |
+| ---- | ---- |
+| 接口类型 | U.FL（兼容 IPEX MHF1 / 1 代 IPEX） |
+| 特性阻抗 | 50Ω |
+| 适配天线 | U.FL / IPEX MHF1 接口天线（WiFi 2.4GHz / 5GHz 双频） |
+
 ## 使用外接天线
 
 如果你需要使用外接天线，需要开启外接天线 overlay，使用 rsetup [设备树配置](../os-config/rsetup#overlays)。
diff --git a/i18n/en/docusaurus-plugin-content-docs/current/zero/zero3/accessories/zero3w-antenna.md b/i18n/en/docusaurus-plugin-content-docs/current/zero/zero3/accessories/zero3w-antenna.md
index 398ae5f8d..037b31f7d 100644
--- a/i18n/en/docusaurus-plugin-content-docs/current/zero/zero3/accessories/zero3w-antenna.md
+++ b/i18n/en/docusaurus-plugin-content-docs/current/zero/zero3/accessories/zero3w-antenna.md
@@ -11,6 +11,14 @@ Radxa ZERO 3W has an onboard Radxa D8 / AP6212 WiFi&BT module, an onboard antenn
 - **1: Onboard antenna**
 - **2: External antenna**
 
+## External antenna connector specifications
+
+| Item | Specification |
+| ---- | ------------- |
+| Connector type | U.FL (compatible with IPEX MHF1 / 1st-gen IPEX) |
+| Characteristic impedance | 50Ω |
+| Compatible antenna | U.FL / IPEX MHF1 antenna (WiFi 2.4GHz / 5GHz dual-band) |
+
 ## Use external antenna
 
 If you need to use an external antenna, you need to enable the external antenna overlay, Use rsetup [Device Tree Configuration](../os-config/rsetup#overlays).