CN204967787U - High isolation millimeter wave hilted broadsword multithrow switch - Google Patents
High isolation millimeter wave hilted broadsword multithrow switch Download PDFInfo
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- CN204967787U CN204967787U CN201520653637.0U CN201520653637U CN204967787U CN 204967787 U CN204967787 U CN 204967787U CN 201520653637 U CN201520653637 U CN 201520653637U CN 204967787 U CN204967787 U CN 204967787U
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Abstract
The utility model discloses a high isolation millimeter wave hilted broadsword multithrow switch, including the third electric capacity that one end and incoming signal are connected, the other end of third electric capacity is connected with a second inductance and a plurality of parallel connection's switch arm. GAAS chip switch has been adopted in the application, and its is small, has further reduced the volume of whole circuit, makes this application satisfy high isolation's requirement under the small condition.
Description
Technical field
The utility model relates to a kind of high-isolation millimeter wave single pole multiple throw.
Background technology
Millimeter wave single pole multiple throw is the vitals of millimeter wave multichannel conversion, at multiple-beam radar, and phased array radar, the application widely that the aspects such as electronic countermeasures have.
From index request, product work frequency is 33-38GHz, and isolation is greater than 80dB, visible high-frequency, and high-isolation is this product main feature.The isolation required due to user is very high, but high-isolation needs longer electrical length to realize, but under the operating frequency of millimeter wave, the increase of electrical length just means the increase greatly of Insertion Loss, simultaneously because the wavelength of millimeter wave is very short, under effective spacing of 1/4 wavelength, the quantity of traditional increase PIN diode cannot be taked to increase isolation, therefore can not the mode of production routinely do.
Utility model content
The purpose of this utility model is to provide a kind of high-isolation millimeter wave single pole multiple throw, cannot increase isolation to solve when the wavelength of millimeter wave is very short.
For solving the problems of the technologies described above, the utility model provides a kind of high-isolation millimeter wave single pole multiple throw, comprises the 3rd electric capacity that one end is connected with input signal, and the other end of the 3rd electric capacity is connected with the second inductance and some switch arms be connected in parallel; Switch arm comprises the second diode, high pass filter and the first diode be sequentially connected in series, the second single-pole single-throw switch (SPST), the first single-pole single-throw switch (SPST) and the first electric capacity; The anode of shown second diode is connected between the negative electrode of the first diode and the second single-pole single-throw switch (SPST), its minus earth; High pass filter comprises one end and is connected to the first inductance between the first electric capacity and the first single-pole single-throw switch (SPST) and the second electric capacity be connected with the other end of the first inductance.
Further, what the first single-pole single-throw switch (SPST) and the second single-pole single-throw switch (SPST) adopted is GAAS chip switch.
The beneficial effects of the utility model are: the application have employed GAAS chip switch, and its volume is little, further reduce the volume of whole circuit, make the application meet the requirement of high-isolation when volume is little.Further, in above-mentioned switch arm, be respectively equipped with a filter circuit, avoid inductance and produce resonance in high frequency.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the utility model most preferred embodiment.
Embodiment
Below embodiment of the present utility model is described; so that the technical staff in the another territory of this technology understands the utility model; but should be clear; the utility model is not limited to the scope of embodiment; to the those of ordinary skill in the another territory of this technology; as long as various change to limit and in the spirit and scope of the present utility model determined, these changes are apparent, and all innovation and creation utilizing the utility model to conceive are all at the row of protection in appended claim.
High-isolation millimeter wave single pole multiple throw as shown in Figure 1, comprises the 3rd electric capacity C3 that one end is connected with input signal, and the other end of the 3rd electric capacity C3 is connected with the second inductance L 2 and some switch arms be connected in parallel.Switch arm comprises the second diode D2, high pass filter and the first diode D1 be sequentially connected in series, the second single-pole single-throw switch (SPST) S2, the first single-pole single-throw switch (SPST) S1 and the first electric capacity C1; The anode of shown second diode D2 is connected between the negative electrode of the first diode D1 and the second single-pole single-throw switch (SPST) S2, its minus earth; High pass filter comprises one end and is connected to the first inductance L 1 between the first electric capacity C1 and the first single-pole single-throw switch (SPST) S1 and the second electric capacity C2 be connected with the other end of the first inductance L 1.
According to an embodiment of the application, what the first single-pole single-throw switch (SPST) S1 and the second single-pole single-throw switch (SPST) S2 adopted is GAAS chip switch.It is high that GAAS chip switch has isolation, and Insertion Loss is little, and volume is little, the feature of working band wide (0.05-50GHz).
The application adopts GAAS chip switch, further reduces the volume of whole circuit, makes the application meet the requirement of high-isolation when volume is little.Further, in above-mentioned switch arm, be respectively equipped with a filter circuit, avoid inductance and produce resonance in high frequency.
Claims (2)
1. a high-isolation millimeter wave single pole multiple throw, is characterized in that, comprises the 3rd electric capacity that one end is connected with input signal, and the other end of described 3rd electric capacity is connected with the second inductance and some switch arms be connected in parallel;
Described switch arm comprises the second diode, high pass filter and the first diode be sequentially connected in series, the second single-pole single-throw switch (SPST), the first single-pole single-throw switch (SPST) and the first electric capacity; Shown between the anode of the second diode negative electrode that is connected to described first diode and the second single-pole single-throw switch (SPST), its minus earth; Described high pass filter comprises one end and is connected to the first inductance between the first electric capacity and the first single-pole single-throw switch (SPST) and the second electric capacity be connected with the other end of described first inductance.
2. high-isolation millimeter wave single pole multiple throw according to claim 1, is characterized in that, what described first single-pole single-throw switch (SPST) and the second single-pole single-throw switch (SPST) adopted is GAAS chip switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520653637.0U CN204967787U (en) | 2015-08-27 | 2015-08-27 | High isolation millimeter wave hilted broadsword multithrow switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520653637.0U CN204967787U (en) | 2015-08-27 | 2015-08-27 | High isolation millimeter wave hilted broadsword multithrow switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204967787U true CN204967787U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520653637.0U Active CN204967787U (en) | 2015-08-27 | 2015-08-27 | High isolation millimeter wave hilted broadsword multithrow switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204967787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688651A (en) * | 2020-11-30 | 2021-04-20 | 中国电子科技集团公司第五十五研究所 | Single-pole multi-throw switch with high harmonic suppression |
-
2015
- 2015-08-27 CN CN201520653637.0U patent/CN204967787U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688651A (en) * | 2020-11-30 | 2021-04-20 | 中国电子科技集团公司第五十五研究所 | Single-pole multi-throw switch with high harmonic suppression |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |