本論文提出三款適用於金屬機殼的筆電天線設計，利用槽孔天線與金屬環境相容且方便與機構整合，以及擁有小尺寸及低姿態結構的特點，將天線設計在機殼的邊框上，可符合目前筆記型電腦窄邊框與金屬機殼的產品發展趨勢。
論文中第一款設計為應用於筆電環境之多頻與寬頻槽孔天線。該天線透過兩個四分之一波長槽孔共振，覆蓋傳統的WLAN雙頻；並利用中島結構構成一個二分之一波長的共振模態，可涵蓋新興的Wi-Fi 6E頻段。天線在尺寸及性能上都具有優勢。
第二款天線設計為具金屬隔離腔之多頻與寬頻槽孔天線，其架構係第一款設計的進階優化，天線操作頻段包含WLAN雙頻及Wi-Fi 6E頻段。透過與槽孔天線整合的半開放式隔離腔，阻擋往隔離腔後方的電磁輻射，避免射頻訊號對筆電裝置內部電路形成干擾。
第三款天線設計為應用於筆電金屬邊框之H形槽孔MIMO雙天線，天線應用頻段包含相當部分的4G LTE與5G FR1頻率範圍。該天線透過多個槽孔結構的共振模態組合出寬頻的效果。雙天線間距僅5 mm，但具備不錯的隔離度與天線效能，適合應用於緊湊佈局的行動裝置。

This thesis proposes three different slot antenna designs for laptops with metal enclosures. Due to the compatibility with the metal environment and low-profile characteristics, slot antennas are convenient to be combined with laptop structures.
In the first part, a multi-band and broadband slot antenna is proposed. The WLAN dual-band resonances are provided by two quarter-wavelength single-ended open slots. The Wi-Fi 6E band resonance is provided by a half-wavelength dual-end-closed slot. The resonant mechanism is examined in each band. Simulation results show that the proposed multi-band antenna has good impedance matching and high radiation efficiency in desired WLAN/Wi-Fi 6E bands.
The second antenna design is a shielding-cavity-integrated multi-band slot antenna. To avoid RF signal interference the toward laptop’s internal circuits, this innovative design integrates the slot antenna with a semi-open shielding cavity. It blocks electromagnetic radiations from components behind the shielding cavity. The operation bands of this antenna design include both WLAN and Wi-Fi 6E bands.
The third antenna design is a compact multi-band H-shaped slot antenna. It combines multiple resonant modes, and hence supports operations in most 5G FR1 communication bands. A two-antenna assembly is proposed to support MIMO operation. The isolation between the two antennas, which is spaced by 5 mm only, exceeds 12 dB. It is, therefore, suitable for mobile devices of a compact space and MIMO operation needs.

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