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參數(shù)資料
| 型號： | HSMS-2863-TR2 |
| 廠商： | AGILENT TECHNOLOGIES INC |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | SILICON, UHF-C BAND, MIXER DIODE |
| 封裝： | SOT-23, 3 PIN |
| 文件頁數(shù)： | 17/17頁 |
| 文件大?。?/td> | 205K |
| 代理商： | HSMS-2863-TR2 |
9
Two SMA connectors (E.F.
Johnson 142-0701-631 or equiva-
lent), a high-Q capacitor
(ATC 100A101MCA50 or equiva-
lent), miscellaneous hardware
and an HSMS-286B are added to
create the test circuit shown in
Figure 16.
The calculated input impedance
for this network is shown in
Figure 17.
FREQUENCY (GHz): 2.3-2.6
Figure 17. Input Impedance,
3
A Bias.
The corresponding input match is
shown in Figure 18. As was the
case with the lower frequency
design, bandwidth is more than
adequate for the intended RFID
application.
RETURN
LOSS
(dB)
2.3
-20
FREQUENCY (GHz)
2.45
0
-10
-15
2.6
-5
Figure 18. Input Return Loss,
3
A Bias.
A word of caution to the designer
is in order. A glance at Figure 17
will reveal the fact that the circuit
does not provide the optimum
impedance to the diode at
2.45 GHz. The temptation will be
to adjust the circuit elements to
achieve an ideal single frequency
match, as illustrated in Figure 19.
FREQUENCY (GHz): 2.3-2.6
2.45 GHz
Figure 19. Input Impedance. Modified
2.45 GHz Circuit.
This does indeed result in a very
good match at midband, as shown
in Figure 20.
RETURN
LOSS
(dB)
2.3
-20
FREQUENCY (GHz)
2.45
0
-10
-15
2.6
-5
Figure 20. Input Return Loss.
Modified 2.45 GHz Circuit.
However, bandwidth is narrower
and the designer runs the risk of a
shift in the midband frequency of
his circuit if there is any small
deviation in circuit board or diode
characteristics due to lot-to-lot
variation or change in temper-
ature. The matching technique
illustrated in Figure 17 is much
less sensitive to changes in diode
and circuit board processing.
5.8 GHz Detector Circuit
A possible design for a 5.8 GHz
detector is given in Figure 21.
20 pF
VIDEO
OUT
RF
INPUT
WIDTH = 0.016"
LENGTH = 0.037"
WIDTH = 0.045"
LENGTH = 0.073"
Figure 21. 5.8 GHz Matching Network
for the HSMS-286x Series at 3
A
Bias.
As was the case at 2.45 GHz, the
circuit is entirely distributed
element, both low cost and
compact. Input impedance for this
network is given in Figure 22.
FREQUENCY (GHz): 5.6-6.0
Figure 22. Input Impedance.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HSMS-2863-TR2G | 功能描述:射頻檢測器 4 VBR 0.3 pF RoHS:否 制造商:Skyworks Solutions, Inc. 配置: 頻率范圍:650 MHz to 3 GHz 最大二極管電容: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SC-88 封裝:Reel |
| HSMS-2864 | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:Surface Mount Microwave Schottky Detector Diodes |
| HSMS-2864-BLKG | 功能描述:射頻檢測器 4 VBR 0.3 pF RoHS:否 制造商:Skyworks Solutions, Inc. 配置: 頻率范圍:650 MHz to 3 GHz 最大二極管電容: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SC-88 封裝:Reel |
| HSMS-2864-TR1G | 功能描述:射頻檢測器 4 VBR 0.3 pF RoHS:否 制造商:Skyworks Solutions, Inc. 配置: 頻率范圍:650 MHz to 3 GHz 最大二極管電容: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SC-88 封裝:Reel |
| HSMS-2864-TR2G | 功能描述:射頻檢測器 4 VBR 0.3 pF RoHS:否 制造商:Skyworks Solutions, Inc. 配置: 頻率范圍:650 MHz to 3 GHz 最大二極管電容: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SC-88 封裝:Reel |
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