Рабочая преза  SPDT

1.

Результаты разработки SPDT
Switch X - диапазона

2.

Облик изделия. Коммутатор 2в1 Х-диапазона частот 40 Вт.
SPDT X-band 40 W
• f = 8-12 GHz
• Insertion loss < 1
• Isolation > 40
• P0,1dB > 44
• P1dB > 46
• Die Size 5x2 mm
• RL in/out < -10/-10
• Tech: GaN on SiC 0.25 um

3.

[9]
[10]
[11]
Freq, GHz
DC to 20
8 to 11
Insertion
loss, dB
0.75 at 1
GHz / 1.3
at 20GHz
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
7.7 to 12.2 8 to 12
8 to 12
12
8 to 12
8.4 t0 10.6
8 to 12
8 to 12
6-13
2 to 11
6 to 12
_____
0.8
0.3
0.8
1.0
<1.7
<1.1
1.06-1.36
0.66-1.5
0.75/1.15
1.5
TX/RX = 0.9/1.4
Isolation, dB 45
35
_____
30
44
30
<63
28
<34
<35
28/29
20
55
Return loss, _____
dB
_____
_____
15
13
_____
<18
13
_____
_____
14
In/out = 18/20
TX/RX = 16/18
P0,1dB, dB
_____
_____
40
39
41.5
38
_____
40
44.8
45.4
45.8
R/T = 38/39
41
P1dB, dB
IP3=62dB _____
m
43
41
43.3
42.9
42
42.5
46.3
46.3
48
R/T = 42/45
_____
Chip size,
mm
1.6mm2
Die
_____
2.9x2.1
4.1x2.7
1.15x1.66 1.95
3.0 x 1.5
5.7x1.5
5.3x2.6
2x3.5
4x4
3x3
GaN
GaN
GaN
GaN
GaN
GaN
GaN
GaN
GaN
Silicon
4x1.8
Technology GaN on SiC GaN
[12]
GaN

4.

Параметры исследуемого транзистора

5.

Схема SPDT Switch Xband on x8 NP2502_SW_LS_S
Vdc_sw_a = -20 (ARM_a ON-State)
Vdc_sw_b = 0 (ARM_b OFF-State)
1. Режим: Arm_a(on-state)/Arm_b(off-state)
ARM_a
ARM_b
ON-State Insertion loss
OFF-State Isolation
2. Режим: Arm_a(off-state)/Arm_b(on-state)
ARM_a
ARM_b
OFF-State Isolation
ON-State Insertion loss

6.

Результаты моделирования в ADS (small signal mode)
1. Режим: Arm_a(on-state)/Arm_b(off-state)
Vdc_sw_a = -20 (ARM_a ON-State)
Vdc_sw_b = 0 (ARM_b OFF-State)
2. Режим: Arm_a(off-state)/Arm_b(on-state)
Vdc_sw_a = 0 (ARM_a OFF-State)
Vdc_sw_b = -20 (ARM_b ON-State)

7.

Результаты моделирования в ADS (large signal mode)
1. Режим: Arm_a(on-state)/Arm_b(off-state)
12 GHz
10 GHz
P1 dB
Vdc_sw_a = -40 (ARM_a ON-State)
Vdc_sw_b = 0 (ARM_b OFF-State)
P0.1 dB
P1 dB
P0.1 dB

8.

Результаты моделирования в ADS (large signal mode)
1. Режим: Arm_a(on-state)/Arm_b(off-state)
Токи и напряжения
Vdc_sw_a = -40 (ARM_a ON-State)
Vdc_sw_b = 0 (ARM_b OFF-State)

9.

Результаты моделирования в ADS. Влияние индуктивностей.

10.

11.

12.

13.

Эскиз переключателя