提出一種新型光子帶隙(PBG)結構微帶貼片天線。在同軸線饋電型微帶貼片天線的接地板上蝕刻出新穎PBG結構，通過數值仿真得到有效提高增益的結構。實際制作了PBG結構微帶天線，并實測了天線特性參數。數值結果和實驗結果進行了比較，取得了較為一致的結果．實測天線增益達8．8dB，比無PBG時提高約3dB，驗證了該PBG結構的有效性。
關鍵詞： 光子帶隙結構，微帶天線，天線增益

Abstract： This paper proposes a new PBG structure for microstrip patch antenna．A new PBG structure is etched on the ground plane of a probe-fed microsmp patch antenna．An efective structure for enhancing the antenna gajn is obtained by simulations．Such a PBG structure microstrip patch an tenna is fabricated and measured．NumericM results ale compared with the measured ones，showing good agreement．The measured gain reaches 8．8dB，which is about 3．2dB larger than that without PBG，verifying the validity of the PBG structure．
Key words： Photonic band gap(PBG)structure，Microstrip antenna，Antenna gain