It seems that the text you provided is incomplete. Please provide the full text you would like me to translate.Product introduction】It seems that there is no text provided for translation. Please provide the text you would like me to translate.

Features: Low insertion loss, great rejection without tuning screws.

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1. Working frequency: 30.50~31.00GHz

2. VSWR: 1.3:1 MAX

3. Insertion loss:  0.5dB MIN

4. Rejection: 70dB MIN@ 0~21.10GHz

5. Interface: WR34

6. Structure:

Ka Band Bandpass Filter