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1. 发明授权

US06737929B1 Hybrid n+ and p+ gate-doped voltage variable capacitors to improve linear tuning range in voltage controlled oscillators 有权
标题翻译：混合n +和p +栅极掺杂电压可变电容器，以改善压控振荡器中的线性调谐范围
公开(公告)号：US06737929B1
公开(公告)日：2004-05-18
申请号：US10301943
申请日：2002-11-22
申请人： Yan Cui , Jyoti Mondal
发明人： Yan Cui , Jyoti Mondal
IPC分类号： H03B508
CPC分类号： H01L29/94 , H01L27/0808 , H01L27/0811 , H01L29/93 , H03B5/1206 , H03B5/124 , H03B5/1293
摘要： A method for operating a wide band voltage controlled oscillator comprises using a control voltage to tune the capacitance of at least one hybrid n+ and p+ gate-doped voltage variable capacitor of the wide band voltage controlled oscillator. A hybrid voltage variable capacitor includes a substrate, a well adjacent to the substrate, a first and second set of contact elements adjacent to the well, a first channel layer adjacent to the well and bound by the first set of contact elements, a first insulating layer adjacent to the first channel layer, a first electrode adjacent to the first insulating layer, a second channel layer adjacent to the well and bound by the second set of contact elements, a second insulating layer adjacent to the second channel layer, and a second electrode adjacent to the second insulating layer.
摘要翻译：用于操作宽带压控振荡器的方法包括使用控制电压来调谐宽带压控振荡器的至少一个混合n +和p +栅极掺杂电压可变电容器的电容。混合电压可变电容器包括衬底，与衬底相邻的阱，与阱相邻的第一和第二组接触元件，与阱接合并由第一组接触元件限定的第一沟道层，第一绝缘层与第一通道层相邻的第一绝缘层，与第一绝缘层相邻的第一电极，邻近阱的第二沟道层并且由第二组接触元件限定，与第二沟道层相邻的第二绝缘层，邻近第二绝缘层的电极。

2. 发明申请

US20070152770A1 Baluns for multiple band operation 有权
公开(公告)号：US20070152770A1
公开(公告)日：2007-07-05
申请号：US11712682
申请日：2007-03-01
申请人： Jyoti Mondal
发明人： Jyoti Mondal
IPC分类号： H03H7/42
CPC分类号： H03H7/42
摘要： A small size, low cost balun is formed on a substrate, such as gallium arsenide, as an integrated passive device. Multiple baluns are formed on a same substrate, allowing multi-band operation. For example, symmetrical transformers are provided for two different bands of operation, such as for a quad-band GSM application. Each of the two different baluns is used for two different frequency bands of operation of the quad-band device. A ground ring allows two Hi-Q baluns to be formed on the same integrated circuit side-by-side with minimum spacing and minimum impact on phase and amplitude performance over the frequency bands of operation. By using multiple integrated circuit baluns on a same substrate or chip, the size and cost of baluns for multi-band operation may be reduced.

3. 发明授权

US06930554B2 Variable gain low noise amplifier and method 有权
标题翻译：可变增益低噪声放大器及方法
公开(公告)号：US06930554B2
公开(公告)日：2005-08-16
申请号：US10623047
申请日：2003-07-18
申请人： Jyoti Mondal , Neil L. Calanca , Matthew R. Miller
发明人： Jyoti Mondal , Neil L. Calanca , Matthew R. Miller
IPC分类号： H03F1/22 , H03F3/45 , H03G3/30 , H03G3/10
CPC分类号： H03F1/223 , H03F1/22 , H03F3/45089 , H03F2200/294 , H03F2200/372 , H03F2200/411 , H03F2203/45481 , H03G3/3052 , H03G3/3057
摘要： A variable gain control amplifier (10) and method provides a substantially constant input impedance and output impedance, and provides a substantially constant noise figure and third order harmonic. The variable gain control amplifier (10) includes an amplifier stage including at least a first intermediate fixed gain stage (22) operative to produce a first intermediate signal (30) in response to the input signal (20). The variable gain control amplifier (10) further includes at least a second intermediate fixed gain stage (24) operative to produce an output signal (18) in response to the first intermediate signal (30). A feedback circuit (16) is operative to produce a gain control signal (32) in response to the output signal (18). A gain control circuit (26) is coupled to the at least first intermediate fixed gain stage (22) and the second intermediate fixed gain stage (24), and receives the gain control signal (32) to control an amplitude of the intermediate signal (30).
摘要翻译：可变增益控制放大器（10）和方法提供基本恒定的输入阻抗和输出阻抗，并且提供基本上恒定的噪声系数和三阶谐波。可变增益控制放大器（10）包括放大器级，至少包括第一中间固定增益级（22），用于响应输入信号（20）产生第一中间信号（30）。可变增益控制放大器（10）还包括至少第二中间固定增益级（24），其响应于第一中间信号（30）而产生输出信号（18）。反馈电路（16）用于响应于输出信号（18）产生增益控制信号（32）。增益控制电路（26）耦合到至少第一中间固定增益级（22）和第二中间固定增益级（24），并且接收增益控制信号（32）以控制中间信号 30）。

4. 发明授权

US06982605B2 Transformer coupled oscillator and method 有权
标题翻译：变压器耦合振荡器和方法
公开(公告)号：US06982605B2
公开(公告)日：2006-01-03
申请号：US10427581
申请日：2003-05-01
申请人： Jyoti Mondal , Neil Calanca , Yan Cui , Joseph Golat
发明人： Jyoti Mondal , Neil Calanca , Yan Cui , Joseph Golat
IPC分类号： H03B5/00
CPC分类号： H03B5/1228 , H03B5/1212 , H03B5/124 , H03B5/1256 , H03B5/1296
摘要： In a particular embodiment, an oscillator adjustment circuit is disclosed. The oscillator adjustment circuit includes a resonator portion comprising a capacitive element coupled to an inductive element and a signal balancing portion comprising a secondary coil of the transformer. The inductive element comprises a primary coil of a transformer. The secondary coil has a grounded center tap.
摘要翻译：在特定实施例中，公开了一种振荡器调节电路。振荡器调节电路包括谐振器部分，其包括耦合到电感元件的电容元件和包括变压器的次级线圈的信号平衡部分。电感元件包括变压器的初级线圈。次级线圈具有接地的中心抽头。

5. 发明申请

US20050012553A1 Variable gain low noise amplifier and method 有权
标题翻译：可变增益低噪声放大器及方法
公开(公告)号：US20050012553A1
公开(公告)日：2005-01-20
申请号：US10623047
申请日：2003-07-18
申请人： Jyoti Mondal , Neil Calanca , Matthew Miller
发明人： Jyoti Mondal , Neil Calanca , Matthew Miller
IPC分类号： H03F1/22 , H03F3/45 , H03G3/30
CPC分类号： H03F1/223 , H03F1/22 , H03F3/45089 , H03F2200/294 , H03F2200/372 , H03F2200/411 , H03F2203/45481 , H03G3/3052 , H03G3/3057
摘要： A variable gain control amplifier (10) and method provides a substantially constant input impedance and output impedance, and provides a substantially constant noise figure and third order harmonic. The variable gain control amplifier (10) includes an amplifier stage including at least a first intermediate fixed gain stage (22) operative to produce a first intermediate signal (30) in response to the input signal (20). The variable gain control amplifier (10) further includes at least a second intermediate fixed gain stage (24) operative to produce an output signal (18) in response to the first intermediate signal (30). A feedback circuit (16) is operative to produce a gain control signal (32) in response to the output signal (18). A gain control circuit (26) is coupled to the at least first intermediate fixed gain stage (22) and the second intermediate fixed gain stage (24), and receives the gain control signal (32) to control an amplitude of the intermediate signal (30).
摘要翻译：可变增益控制放大器（10）和方法提供基本恒定的输入阻抗和输出阻抗，并且提供基本上恒定的噪声系数和三阶谐波。可变增益控制放大器（10）包括放大器级，至少包括第一中间固定增益级（22），用于响应输入信号（20）产生第一中间信号（30）。可变增益控制放大器（10）还包括至少第二中间固定增益级（24），其响应于第一中间信号（30）而产生输出信号（18）。反馈电路（16）用于响应于输出信号（18）产生增益控制信号（32）。增益控制电路（26）耦合到至少第一中间固定增益级（22）和第二中间固定增益级（24），并且接收增益控制信号（32）以控制中间信号 30）。

6. 发明申请

US20060091970A1 Baluns for multiple band operation 有权
标题翻译：不平衡变压器用于多频段操作
公开(公告)号：US20060091970A1
公开(公告)日：2006-05-04
申请号：US10978596
申请日：2004-11-01
申请人： Jyoti Mondal
发明人： Jyoti Mondal
IPC分类号： H03H7/42
CPC分类号： H03H7/42
摘要： A small size, low cost balun is formed on a substrate, such as gallium arsenide, as an integrated passive device. Multiple baluns are formed on a same substrate, allowing multi-band operation. For example, symmetrical transformers are provided for two different bands of operation, such as for a quad-band GSM application. Each of the two different baluns is used for two different frequency bands of operation of the quad-band device. A ground ring allows two Hi-Q baluns to be formed on the same integrated circuit side-by-side with minimum spacing and minimum impact on phase and amplitude performance over the frequency bands of operation. By using multiple integrated circuit baluns on a same substrate or chip, the size and cost of baluns for multi-band operation may be reduced.
摘要翻译：作为集成无源器件，在诸如砷化镓的衬底上形成小尺寸，低成本的平衡 - 不平衡变压器。多个巴伦形成在同一基板上，允许多频段操作。例如，为两个不同的操作频带提供对称的变压器，例如用于四频GSM应用。两个不同的巴伦中的每一个用于四频带设备的两个不同的频带操作。接地环允许在相同的集成电路上并排形成两个Hi-Q平衡 - 不平衡变换器，在操作频带上对相位和幅度性能的影响最小，影响最小。通过在相同的衬底或芯片上使用多个集成电路平衡 - 不平衡变压器，可以减少用于多频带操作的巴伦的尺寸和成本。

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