hairpin resonator and applies it to the designofanX-bandoscillator. The measurement of the resonator itself shows that the
suggested resonator provides a higher loaded quality factor with
reduced circuit area compared to the conventional hairpin
resonator. The oscillators are designed to operate at 9.2 GHz
using the conventional and novel hairpin resonators, to compare
the phase noise p
요 약
본 논문에서는 새로운 헤어핀 공진기를 제안하고 이를 X 밴드 발진기에 응용하는 연구에 관한 것이다. 새로이 제안된 헤어핀 공진기는 스파이럴 구조를 이용하여 coupling을 강화시키는 구조이다. 기존의 헤어핀 공진기와 새로이 제안된 공진기를 마이크로스트립 선로 상에서 제작하여 특성을
of the oscillator
showed the frequency tuning range of 11.15 MHz
with the output power flatness less than 0.10 dB at
the center frequency of 8.836 GHz. The
fundamental output power was 12.34 dBm and the
second harmonic was suppressed by 32.04 dBc,
and the phase noise performance was 95.78
dBc/Hz at 100 kHz offset.
Index Terms- GaAs MESFET, microstrip hairpin
resonat
A filter is widely used in overall RF system. There are many species and structures in filter. A filter seems to be simple, but there are many considerations to design filter. In this paper, we designmicrostrip bandpass filter which has bandwidth of 500 MHz and center frequency of 2.5 GHz. Alumina is used as substrate, and chromium is used as conductor. Final results are achieved as follows. Ins
of this kind. In each case the dramatic irony arises from the poet's knowing more or seeing more than the child does, but in each case also the boy's ignorance testifies to his good heart and likable innocence.
The dream in lines 11-20 is obviously a wish-fulfillment dream, though Blake would not have been familiar with this Freudian terminology. It is also a miniature allegory, capable of two i