| 摘要 |
A radio frequency anechoic test chamber ( 100 ) includes a test stand ( 118 ) that includes a relatively small diameter, mechanically robust, telescoping lower vertical support column ( 202 ), a large diameter thin walled middle vertical support column ( 204 ) that includes a sheet or coating of absorbing material ( 224 ) disposed proximate the circumference of the thin walled middle support column, ( 204 ) and an upper support member ( 206 ). The radio frequency anechoic test chamber provides improved ripple performance that allows more accurate measurements of the gain pattern of radio frequency equipment.
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